Company Profile Who We Are Corporate Mission Products and Applications Contact Us

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2 Company Profile Who We Are Founded in 00, is a fabless integrated circuit design company, engaged in inventing, designing and marketing high performance linear and mixed-signal integrated circuits (ICs) for use in a variety of electronic equipment. s products bridge the analog real world and digital world by detecting, measuring, amplifying, converting power supply and providing protection for electronic circuits. Corporate Mission s mission is to continuously develop high quality and innovative mixed signal IC solutions that add value to customers electronics equipment worldwide. Products and Applications Our products include power supplies, power management circuits, analog switches, interface circuits, ESD protection ICs and EMI filters. markets over 0 analog ICs for uses in a wide variety of electronic equipment. These include PCs and their peripherals, portable devices, instrumentation, test equipments and digital consumer electronics. Contact Us, Incorporated. Add: Room 606, No. 70 Shengxia Road, Zhangjiang Hi-Tech Park, Shanghai Zip Code: 00 Tel: Fax: Website:

3 Product Lines Union Semi Product Lines Power Supply Power Management Analog and Data Switches Interface & System Interconnect ESD Protection & EMI Filters Linear Regulators μp Supervisory Low Ron Analog Switches RS-48 Interface EMI Filter Array Switching Buck Converters Power Switches High Bandwidth Switches RS4 Interface USB Port and Ethernet Port Protection Switching Boost Converters Small Signal MOSFET Video Switches RS-3 Interface General Purpose Protection LED Lighting Over Current Protection & Over Voltage Protection s High and Medium Working Voltage TVS

4 Smart Phone Solution Memory Card USB Smart Card Linear Regulator TVS Array Analog Switch TVS Array UM330 UESD4B UM37 UM7 UESD4B Antennas EMI Filter Camera RF Transceiver Chipset Base Band Processor UM86 EMI Filter UM86 Display TVS Array UM30 Touch Screen Sensor IC Keyboard UESD4B Audio Switch UM3699A UM4684 Headphone Speaker Microphone Charge Jack TVS UM07 UM079 Battery Charger IC PMU Power Supply Analog and Data Switches Interface & System Interconnect ESD Protection & EMI Filters Tablet Solution SIM Card Connectivity RFPA Power UM330 Audio Subsystem Headphone Audio Switch Speaker UM3699A Microphone Audio Codec SIM Card ESD Protection UM04 UM64 Wifi Bluetooth NFC SDIO SPI UART Display Subsystem Touch Screen Controller Light Sensor LCD Bias and Backlight UM660 UM66 CCD/CMOS Camera EMI Filter UM86 LDO UM70 Camera Interface Processor Display Interface HDMI Interface EMI Filter UM86 HDMI LCD SD-Card SD Card ESD Protection MMC UM04 Power Management USB Power Switch UM97 ESD Protection UM04 USB HOST USB HOST UM30 UM330DA UM304H UM3308 Load Switch UM386 Li-ion Battery Power Subsystem Switching Regulator UM48 Linear Regulator UM37xx UM470 Power Supply Power Management Analog and Data Switches Interface & System Interconnect ESD Protection & EMI Filters

5 Point of Sales Terminal Solution Card Reader USB Port Ethernet Port LDO UM70 TVS Array UESD4B UESDB Power Switch UM97 TVS Array UM04 TVS Array UM0 UM04 TVS Array Power Supply Memory Keyboard UESD4B UESDB UM30 Paper Feed Motor M Stepper Motor Controller & Driver Controller LCD Backlighting UM660 UM66 Display Carriage Motor M Stepper Motor Controller & Driver Linear Regulator UM3xx Clock Interface & Interconnection UM3 UM33 UM308 UM3483 Printer Head Adaptor Input Power Supply UM48 Voltage Supervisor UM809 UM803 UM80 UM8 Level Shifter UM304UE UM30H Printer Module, SPI, Security Module Power Supply Power Management Interface & System Interconnect ESD Protection & EMI Filters Set-Top Box Solution Adaptor +V Power Supply Unit Step-down Convertor UM48 Voltage Supervisor UM809 UM80 Audio Block Tuner TVS UM04 Demod Ethernet PHY Remote Control STB SOC Video Block USB Interface Video MUX UM330 TVS UM04 UM0 Power Switch UM97 TVS UM04 SATA HDD RS3 Interface Smart Card Reader 3Tx/Rx UM343 TVS UESD4B UESDB Flash SDRAM /DDR Power Supply Power Management Analog and Data Switches Interface & System Interconnect ESD Protection & EMI Filters

6 Wearable Product Solution Power Management External DC Charger Wireless Voltage Regulator Battery Bluetooth RF Switching Regulator UM30 Power Switch UM386 LDO UM3xx UM4xx UM30/304 MCU Low Noise LDO UM330 OLED Backlight UM660 TVS UM0/0 External Interface ECG Sensor Sensor Other Sensors Temperature Sensor LCD USB Audio Key SD Card Serial Flash Power Supply Power Management Interface & System Interconnect ESD Protection & EMI Filters Security and Surveillance Solution Identity Module IP Camera Analog Digital Voltage Detection Reset Management Watchdog UM809/80 UM706/708 TVS UESD4B UESDB UESD6B Keyboard Card Reader Finger Print Sensor LDO UM378 UM37 DC-DC UM48 Adaptor Input/Battery Pack Reset IC UM8 LDO (.8V) UM78 UM70S-00 LDO (.V,.8V) UM470 UM37xx TVS UM04 Power Switch UM97 MOSFET UM30 UM30 DC-DC UM660 LCD CPU USB SD RTC LDO UM3xx RS3/ RS48 TCP/IP Wifi Door Key Buzzer /LED WLED /IrfRed Interface UM308 UM3483 UM3 UM33 TVS UM04 LDO UM770 MOSFET UM30 UM30 Switching Regulator UM360 Electric Lock Management PC Power Supply Power Management Interface & System Interconnect ESD Protection & EMI Filters

7 Smart Grid Solution Power Line Voltage/ Current Sensors Relay Contact AC/DC Relay Driver UM30 Switch Detection VREF MCU Core.0V UM70DA-0 BAT DC OUT SOC (MCU/DSP/ADC) UM809/80 UM706 RTC System Power UM3xx UM0 UM430 UM48 ESAM/RF CPU Card 48 Power PLC Power UM430 External Module UM00 Interface Protect TVS UM0/4 UM09 UM079 Communication Interface Ethernet RF CAN PLC RS48 UM308 UM3087 RS3 UM3 UM33 Power Supply Power Management Interface & System Interconnect ESD Protection & EMI Filters ADSL Modem Solution Adaptor +V Voltage Supervisor UM809 UM80 Power Supply Unit Step-down Convertor UM48 CATV Tuner WLAN LDO UM330 Phone Port SDRAM TVS UM04 Ethernet Interface Cable/ADSL Modem IC Flash Firewire 394 USB Interface TVS UM0 UM04 Power Supply Power Management ESD Protection & EMI Filters Braswell Solution Memory SATA Connect PCIe AIC-Little Mount UM3304 UM30 HDMI SD Slot TVS UM04 MOSFET UM30 DP USB3.0 Port Braswell UM3304 EDP 4 USB.0 Port SIM Card Connector TVS UM04 TVS UM080 UM3304 UM30 MOSFET UM30 Touch Panel Connector Camera AIC EC Add in Card UM3304 Power Management BT GPS Audio UM30 NFC Module Connector ATX Wifi Power Management Interface & System Interconnect ESD Protection & EMI Filters

8 Bay Trail-T for Tablet Solution VGA ESD Protection IC of HDMI.4a 400kbps for E-DDC DP. / edp / MIPI-DSI UESD6V8V4C UM304H Current Limit at.a SDIO 3.0, SPI, IC*7, IS*3, HSUART*, emmc4., MIPI-HIS, ULPI, LPE, SATA MIPI-CSI Camera Bay Trail-T Power Switch UM97 ESD Protection UESD6V8V4C Current Limit at A USB.0 Host*4 or USB HSIC USB 3.0 Host LP-DDR3 066/ DDR3L-333 Power Switch UM386.8V/3.3V Loading UM3304 SPI -.8V to 3.3V, MHz BIOS Power Management Interface & System Interconnect ESD Protection & EMI Filters Bay Trail-M for Notebook Solution VGA ESD Protection IC of HDMI.4a 400kbps for E-DDC DP. / edp / MIPI-DSI UESD6V8V4C UM304H Current Limit at.a SDIO 3.0, SPI, IC*7, IS*3, HSUART*, emmc4., MIPI-HIS, ULPI, LPE, SATA Power Switch UM97 ESD Protection UESD6V8V4C USB.0 Host*4 or USB HSIC MIPI-CSI Camera LP-DDR3 066/ DDR3L-333 HAD, Realtek ALC89 7.+ch PCIe.0 Bay Trail-M Current Limit at A Power Switch UM386 USB 3.0 Host GbE.8V/3.3V Loading UM330H SIRQ,.8V to 3.3V, 33MHz Embedded UM330H Controller.8V to 3.3V, 400kHz SM Bus Temp Sensor UM3304 BIOS SPI -.8V to 3.3V, MHz Power Management Interface & System Interconnect ESD Protection & EMI Filters

9 Bay Trail-D for Desktop Solution VGA ESD Protection UESD6V8V4C IC of HDMI.4a UM304H 400kbps for E-DDC DP. / edp / MIPI-DSI SDIO 3.0, SPI, IC*7, IS*3, HSUART*, emmc4., MIPI-HIS, ULPI, LPE, SATA Current Limit at.a Fuse USB.0 Host*4 or USB HSIC MIPI-CSI Camera LP-DDR3 066/ DDR3L-333 Bay Trail-D Current Limit at A Fuse USB 3.0 Host HAD, Realtek ALC89 7.+ch GbE PCIe.0 RS3 IC UM33 UM343 RS48/RS4 IC UM308, UM349 UM3304 BIOS SPI -.8V to 3.3V, MHz Debug Port or RS48 Network Interface & System Interconnect ESD Protection & EMI Filters Bay Trail-I for Industrial Solution VGA ESD Protection IC of HDMI.4a 400kbps for E-DDC DP. / edp / MIPI-DSI UESD6V8V4C UM304H Current Limit at.a SDIO 3.0, SPI, IC*7, IS*3, HSUART*, emmc4., MIPI-HIS, ULPI, LPE, SATA MIPI-CSI Camera LP-DDR3 066/ DDR3L-333 HAD, Realtek ALC89 7.+ch PCIe.0 Bay Trail-I Power Switch UM97 ESD Protection UESD6V8V4C Current Limit at A Power Switch UM386 USB.0 Host*4 or USB HSIC USB 3.0 Host GbE.8V/3.3V Loading RS3 IC UM33 UM343 RS48/RS4 IC UM308, UM349 SPI -.8V to 3.3V, MHz UM330H Embedded Controller SIRQ,.8V to 3.3V, 33MHz UM330H.8V to 3.3V, 400kHz SM Bus Temp Sensor Debug Port or RS48 Network UM3304 BIOS SPI -.8V to 3.3V, MHz Power Management Interface & System Interconnect ESD Protection & EMI Filters

10 Product Selection Guide Table of Contents Power Supply Linear Regulators - Single Channel 30mA Output Current LDOs Dual Channel 300mA Output Current LDOs Single Channel 00mA Output Current LDOs High Input Voltage LDOs Ultra Low Quiescent Current LDOs Low Output Noise LDOs Switching Regulators 6-9 DC-DC Buck Converters 6 DC-DC Boost Converters 6 LED Backlight Boost Drivers 6 LED Lighting Buck Drivers 6 Power Management μp Supervisory 0 Small Signal MOSFET 0 Power Switches 0 Analog and Data Switches Low Ron Analog Switches 3 High Bandwidth Data Switches 3 Video Switches 3 Interface and System Interconnect RS48 Interface RS4 Interface RS3 Interface s 6 ESD Protection and EMI Filters EMI Filter Array 0 USB Port and Ethernet Port Protection General Purpose Protection High and Medium Working Voltage Transient Voltage Suppressors (TVS) Appendix Sales Contact 4

11 Product Selection Guide Linear Regulators (LDOs) Part Number Features (V) (Min) (V) (Max) (V) IOUT (ma) (Max) IQ _MAX (Typ) VDROP IOUT (Max) Note 300mA/30mA CMOS Linear Regulators without EN Control Ultra Low Dropout, UM6xx /3.3 Note mA SOT3-3 Input Under Voltage Lockout.V to.0v with SOT3-3 UM36xx Standard Low Dropout mA 0.V Interval SOT33 30mA, Ultra Low Dropout, Fixed.0V to 4.0V UM60S-xx mA SOT3-3 Input Under Voltage Lockout with 0.V Interval 300mA/30mA CMOS Linear Regulators with EN Control UM7xx UM37xx UM70 Ultra Low Dropout, EN Control, Input Under Voltage Lockout Standard Low Dropout EN Control 30mA, Ultra Low Dropout, Input Under Voltage Lockout, Excellent Load Transient /3.3 Note mA SOT V to.0v with SOT mA 0.V Interval SOT Fixed.0V to 4.0V DFN6.0.0 with 0.V Interval, or mA SOT89- Adjustable Output SOT3- from.0v to.0v 00mA CMOS Linear Regulator UM770 00mA Output Current, Ultra Low Dropout, Input Under Voltage Lockout. 6.0 Fixed.0V to 4.0V with 0.V Interval, or Adjustable Output from.0v to.0v mA DFN6.0.0 SOT89- Dual Channel 300mA CMOS Linear Regulator UM470 Dual Channel Separate EN Control...//./.8/./.7/.8/3.0/3.3 Note mA SOT3-6 DFN DFN6.0.0 High Input Voltage Linear Regulators UM4xx V Input Voltage..0.V to.0v with 0.V Interval mA SOT3-3 SOT89-3 UM430 8V Input Voltage V to 6.0V with 0.V Interval mA SOT3-3 SOT3-, SOT89-3 UM440 8V Input Voltage with EN Control V to 6.0V with 0.V Interval mA SOT3- SOT89- UM43 30V Input Voltage V to 6.0V with 0.V Interval mA SOT3-3 SOT3-, SOT89-3 UM44 30V Input Voltage with EN Control V to 6.0V with 0.V Interval mA SOT3- SOT89- Ultra Low Quiescent Current Linear Regulators UM3xx Ultra Low IQ...3/./.8/./.8/ 3.0/3.3/3. Note 3.V 0.8uA@ =3.0V 30mA SOT3-3, SOT89-3 DFN4.8. UM4xx Ultra Low IQ with EN Control...3/./.8/./.8/ 3.0/3.3/3. Note 3.V 0.8uA@ =3.0V 30mA SOT3-, SOT89- DFN6.0.0 UM0 UM60 Wide Input Voltage Range, Ultra Low IQ Wide Input Voltage Range, Ultra Low IQ with EN Control V to.0v with 0.V Interval.V to.0v with 0.V Interval 0 0.4uA@ =.0V.4uA@ =.0V 00mA 00mA DFN6.0.0 DFN4.0.0 SOT3-3, SOT89-3 DFN6.0.0 DFN4.0.0 SOT3- Low Output Noise Linear Regulator *UM330 0mA Output Current, 40μVRMS Low Noise V to.0v with 0.V Interval 0 0 0mA SOT3-,SOT33 DFN4.0.0 Note: Besides the standard output voltages listed in the table, customized output voltage is also available from.v to.0v at step of 00mV. Contact factory for product availability. Note: Dropout voltage is defined for.v device only. *: Future product, contact factory.

12 Quiescent Current (µa) Product Selection Guide Linear Regulators 8V Input, Low Quiescent Current Linear Regulator UM0/UM60 Input Voltage Range:.8V to 8V 0mA Guaranteed Output Current Low Dropout Voltage: 0mV (Typ) at 00mA Low Quiescent V IN=8V (Typ) Low Noise: µv RMS (0Hz to 00kHz) Available Fixed Output Voltage from.v to.0v with 0.V Step With Shutdown Control (UM60) Output Current Limit Quiescent Current vs Input Voltage I OUT =0mA Input Voltage (V) SHDN UM0S, SOT UM0DA, DFN6.0.0 (Top View) 3 4 UM60S, SOT3-6 3 SHDN 3 4 UM0Y, SOT89-3 EP UM60DA, DFN6.0.0 (Top View) 3 UM0DB, DFN4.0.0 (Top View) 3 4 UM0/UM60 Pin Configurations UM0B, SOT89-3 EP UM60DB, DFN4.0.0 (Top View) SHDN 3 300mA, Micropower, Dual Channel VLDO Linear Regulator UM470S/UM470DA/UM470DC Very Low Dropout: 00mA Operating Voltage Range:.V to.v Low Noise: 00μV RMS (0Hz to 00kHz) Dual LDO Outputs (300mA/300mA) Output Current Limit Stable with μf Output Capacitor Thermal Overload Protection Low Profile SOT3-6, 6-Lead DFN.0.0 and 8-Lead DFN s Applications Bluetooth/80. Cards PDAs and Notebook Computers Portable Instruments and Battery-Powered Systems Cellular Phones Benefits Low Profile s Separated Enable Control Available Multiple Output Voltage Combination The UM470 series are dual channel very low dropout (VLDO) linear regulators with separated enable control. The range of output voltage is from.v to.0v while operated from.v to.v input. Typical output noise is only 00μV RMS and maximum dropout is just 00mV at the load current of 00mA. Naming Rule UM470 Available Voltage Version Code Voltage Code Voltage Code Voltage Code Voltage A F 4. L 3.3 R.8 B 4.8 G 4 M 3 S. C 4.7 H 3.8 N.8 T.3 D 4. J 3.6 P.7 U. E 4.3 K 3. Q. SOT3-6 EN - EN Channel Output Voltage Channel Output Voltage Type S: SOT3-6 DA: DFN6.0.0 DC: DFN DFN6.0.0 (Top View) EN DFN (Top View) EN EN EN UM470 Pin Configurations 3

13 Quisecent Cuerrent (ua) Product Selection Guide Linear Regulators 8V, 30mA, Low Consumption Linear Regulator UM430/UM440 Input Voltage Range: 3.6V to 8V Output Voltage:.0V to 6.0V with 00mV Interval 30mA Guaranteed Output Current Low Quiescent Current: 4.8μA (Typ) at 8V Input Low Dropout Voltage: 00mV (Typ) at 30mA With Enable Control (UM440S/UM440Y) Quiescent Current vs Input Voltage Input Voltage (V) UM430S UM430S-xx, SOT3-3 3 EN UM440S-xx, SOT3- UM430Y 4 UM430Y-xx, SOT UM430B UM440Y-xx, SOT89- UM430B-xx, SOT89-3 UM430/UM440 Pin Configurations EN 3 4 UM430S-xx, SOT3-30mA, Micropower, Low Dropout Linear Regulator UM60/UM70 Input Voltage Range:.V to 6.0V 30mA Guaranteed Output Current Fixed Output Voltage of UM60 and UM70 from.0v to 4.0V with 0.V Interval Adjustable Output Voltage of UM70:.0V to.0v ±% Voltage Accuracy at V OUT>.V ±30mV Voltage Accuracy at V OUT.V Low Dropout Voltage: 0mV (Max) at 0mA f=00hz Excellent Load Transient Response Low Quiescent Current: 90μA (Typ) OUT Fixed Output, UM60S-xx, SOT3-3 IN 3 IN SHDN 3 OUT IN 4 SHDN 3 Fixed Output, Adjustable Output, UM70S-xx, UM70S-00, SOT3- SOT3- FB OUT SHDN 3 4 SHDN 3 4 IN Fixed Output, Adjustable Output, UM70Y-xx, UM70Y-00, SOT89- SOT89- OUT 4 FB SHDN SHDN FB IN OUT Fixed Output, Adjustable Output, UM70DA-xx, UM70DA-00, DFN6.0.0 DFN6.0.0 (Top View) (Top View) UM60/UM70 Pin Configurations 4

14 Quiescent Current (ma) Quiescent Current (μa) Product Selection Guide Linear Regulators 00mA, Micropower, Ultra Low Vdrop Linear Regulator UM770 Very Low Dropout: 30mV (Max) at 00mA Low Enable Threshold Voltage Maximum Input Voltage: 6.0V Fixed Output Voltage:.0V to 4.0V with 0.V Interval Adjustable Output Voltage:.0V to.0v ±.0% Voltage Accuracy at 00mA Under Voltage Lockout Output Current Limit Short-Circuit and Thermal Overload Protection SHDN SHDN 3 4 Fixed Output, UM770Y-xx, SOT89- FB SHDN SHDN 3 4 Adjustable Output, UM770Y-00, SOT89- FB Fixed Output, UM770DA-xx, DFN6.0.0 (Top View) Adjustable Output, UM770DA-00, DFN6.0.0 (Top View) UM770 Pin Configurations Ultra Low Quiescent Current Linear Regulator UM3xx/UM4xx Ultra Low I Q: V IN=3V Operating Voltage Range:.V to.v Dropout Voltage: 00mV I LOAD=0mA, V OUT>3.0V Output Voltage:.3V to.0v 00mA Guaranteed Output V IN 3V 00mA Guaranteed Output V IN 3.V Fast Transient Response With Enable Control (UM4xx) Quiescent Current vs Input Voltage Input Voltage (V) Quiescent Current vs Temperature V IN =3.V Temperature ( C) Applications Battery-Powered Systems Reference Voltage Sources Cameras, Video Cameras Portable AV Systems Portable Games Cellular Phones Benefits Very Low Operating Voltage:.V Ultra Low I Q Over All Operating Voltage Range: <3μA UM3xxS UM3xxS, SOT3-3 EN 3 4 UM3xxY 4 3 UM3xxY, SOT89-3 UM3xxDA, DFN4.8. (Top View) EN UM4xxS, SOT3- UM4xxY, SOT89- UM4xxDA, DFN6.0.0 (Top View) UM3xx/UM4xx Pin Configurations 6 EN

15 Product Selection Guide Switching Regulators DC/DC Buck Converters Part Number Description (V) (V) IOUT (ma) (Max) Frequency (MHz) (Typ) Peak Efficiency Sync Low Voltage Buck Converters ( 6V) UM300 Current Mode PWM Buck.~. 0.6~ % SOT3- UM30 UM30QA UM30 Current Mode PWM Buck with Light Load Mode Current Mode PWM Buck with Integrated Inductor Current Mode PWM Buck with Light Load Mode and Mode Selection.~. 0.6~ % SOT3- DFN6.0.0.~. 0.6~ % QFN ~ ~ % SOT3-6 DFN6.0.0 High Input Voltage High Output Current Buck Converters ( 6V, IOUT A) *UM48S8 Current Mode PWM Buck 4.7~8.0.8~ SOP8 DC/DC Boost Converters Part Number Description (V) (V) ILIMIT (ma) (Max) Frequency (MHz) (Typ) Peak Efficiency *UM349 Voltage Mode PWM Boost with Light Load Mode 0.9~4.4.~ % SOT3-6 DFN8.0.0 UM660 Constant Voltage PFM Boost Converter.0~6.0.0~8 40 (Max) 88% SOT3- DFN6.0.0 UM66 Constant Voltage PFM Boost Converter.0~6.0.0~8 00 (Max) 88% SOT3- DFN LED Backlight Boost Drivers Part Number Description (V) (V) (Max) ILIMIT (ma) (Max) Frequency (MHz) (Max) Peak Efficiency UM66 *UM663 Constant Current PFM Boost Converter with Over Voltage Protection Constant Current PWM Boost Converter.0~ % SOT3-6.7~ % SOT3-6 DFN8.0.0 LED Lighting Buck Drivers Part Number Description (V) VSENSE (mv) (Typ) ILIMIT (ma) (Min). Frequency (MHz) (Max) Peak Efficiency UM30 UM3 UM360 UM36S 30V Input 30mA Step-Down Current Mode LED Driver 3V Input 700mA Step-Down Current Mode LED Driver 40V, A Step-Down Current Mode LED Driver, with Frequency Jitter 40V Input A Step-Down Current Mode LED Driver 7~ >90% SOT3-6~ >90% SOT3- SOT89-6~ >90% SOT89-6~ >90% SOT3- *: Future product, contact factory. 6

16 Efficiency (%) Efficiency (%) Product Selection Guide Switching Regulators A,.MHz, Synchronous Step-Down DC-DC Converter UM30S/UM30DA High Efficiency: Up to 9%.V to 6.0V Input Voltage Range 000mA Output Current.MHz Constant Switching Frequency Integrated Main Switch and Synchronous Rectifier. No External Schottky Diode Required. Low Quiescent Current: 6µA Thermal Fault Protection <µa Shutdown Current Space Saving SOT3-6 and DFN6.0.0 s Benefits Extremely Easy to Use Tiny Overall Solution Reduces System Cost Two Operating Modes are Optional at Light Load Condition The UM30 is a high efficiency pulse-width-modulation (PWM) synchronous step-down DC-DC converter with an input voltage range of.v to 6.0V. It provides up to 000mA output current from a single Li-ion cell. The UM30 operates at.mhz fixed switching frequency and enters Power Save Mode to maintain high efficiency at light load condition. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high..v to 6V CIN 0µF EN UM30 FB MODE SW L.µH R 360kΩ R 80kΩ UM30 Typical Application Circuit C pf.8v, 000mA COUT 0µF Efficiency vs. Load Current V OUT =3.3V, Power Save Mode =3.6V =4.V =6.0V Output Current (ma) 600mA,.MHz, Synchronous Step-Down DC-DC Converter UM30/UM30DA High Efficiency: Up to 90%.V to.v Input Voltage Range 600mA Output Current.MHz Constant Switching Frequency Integrated Main Switch and Synchronous Rectifier Pulse Skipping Mode Operation at Light Load Condition Low Quiescent Current: 0µA <µa Shutdown Current Lead Free SOT3- (UM30) and DFN6.0.0 (UM30DA) s Benefits Pulse Skipping Mode Improves Efficiency at Light Load Operation Synchronous Rectifier, No External Schottky Diode Required Ultra Low Shutdown Current UM30 is a high-efficiency pulse-width-modulated (PWM) step-down Efficiency vs. Load Current (=.8V) DC-DC converter, 00 capable of delivering 600mA output current over a wide input 90 voltage range from.v to.v. The UM30 automatically turns off the 80 synchronous rectifier while the inductor current is low and enters discontinuous 70 PWM mode. This can increase efficiency at light load condition Pulse Skipping Mode improves efficiency =.V =3.6V =4.V =.V at light load operation Output Current (ma).v~.v C 4.7µF UM30 UM30DA EN SW FB L.µH R 634K R 36K =.8V C 0µF UM30/UM30DA Typical Application Circuit 7

17 Efficiency (%) Product Selection Guide Switching Regulators Low-Profile, 600mA, Synchronous Step-Down Converter with Integrated Inductor UM30QA Ultra Small QFN Integrated Inductor No Schottky Diode Required High Efficiency: Up to 90% 600mA Output Current 0.6V Minimum Output Voltage.V to.v Input Voltage Range <µa Shutdown Current Pulse Skipping Mode Operation Thermal Fault Protection Benefits Embedded Inductor Small PCB Area Needed Extremely Easy to Use Tiny Overall Solution Reduces System Cost Low Ripple and Noise The UM30QA is a high-efficiency, step-down DC-DC converter with a constant PWM frequency, current mode architecture. It is capable of delivering 600mA output current over a wide input voltage range from.v to.v. The UM30QA automatically turns off the synchronous rectifier while the inductor current is low, and enters pulse skipping mode at light load condition. This can increase efficiency. It is an ideal choice to be used to replace less efficient LDO to achieve improved efficiency in space restricted applications. The UM30QA enters shutdown mode and consumes less than µa when EN pin is pulled low. CIN 4.7µF.V to.v P A EN (CA)* A UM30QA * CA and CFF are optional. FB P (CFF)* R 634K R 36K UM30QA Typical Application Circuit.8V COUT 0µF Light Load Efficiency vs. Input Voltage ILOAD=0.mA ILOAD=0.8mA ILOAD=.0mA =.8V Input Voltage (V) 8V Low Power DC/DC Boost Converter UM660S/UM660DA.0V to 6.0V Input Voltage Range Adjustable Output Voltage up to 8V 400mA Internal Switch Current Up to MHz Switching Frequency 36μA Typical No Load Quiescent Current μa Maximum Shutdown Current Internal Soft-Start Tiny SOT3- and DFN6.0.0 s Applications LCD Bias Supply White LED Supply for LCD Backlights Digital Still Cameras PDAs, Organizers and Handheld PCs Cellular Phones Standard 3.3V/V to V Conversion The UM660 is a PFM controlled step-up DC-DC converter with a switching frequency up to MHz. The device is ideal to generate output voltage for small to medium LCD bias supplies and white LED backlight supplies from a single cell Li-ion battery. The part can also be used to generate standard 3.3V/V to V power conversions. V IN =.0V~6.0V C IN 4.7µF EN L 0µ H UM660 SW FB D UM660 Typical Application Circuit R R C FF V OUT = - 8V COUT µ F SW 6 SW FB 3 4 EN EN 3 4 FB UM660S UM660DA (Top View) 8

18 Product Selection Guide Switching Regulators 30V, 30mA LED Lighting Driver UM30 Internal 30V NDMOS Switch 30mA Output Current Wide Input Voltage Range: 6V to 30V ±% LED Current Accuracy High Efficiency (up to 9%) Analog or PWM Dimming Control 40V Transient Capability Inherent Open-Circuit LED Protection Output Shutdown Control Up to MHz Switching Frequency Pb-Free SOT3- Applications MR6 and General Lighting Automotive Lighting Low Voltage Industrial Lighting Illuminated Signs The UM30 is capable of driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. This step-down converter provides an externally adjustable output current of up to 30mA from an input supply between 6V and 30V. It can even reach 8 watts of output power, depending on supply voltage and external components. The UM30 is available in a low profile SOT3- package. (up to 30V) C µf Floating ADJ D UM30 Rs 0.33ohm ISENSE LX Typical Application Circuit LX L 00µH Benefits DC Voltage or PWM Dimming High Efficiency (up to 9%) Inherent Open-Circuit LED Protection 3 ADJ ISENSE 4 SOT3- UM30 Pin Configuration 40V, A LED Lighting Driver UM360Y Integrated 40V 0.4Ω NDMOS A Output Current Wide Input Voltage Range: 6V to 40V ±% LED Current Accuracy Up to 9% Efficiency Adjustable Constant LED Current Analog or PWM Dimming Control Improved EMI through Frequency Jitter Over Temperature and Open-Circuit LED Protection Up to MHz Switching Frequency Pb-Free SOT89- s The UM360 is a PWM step-down converter with internal power switch, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 6V and 40V and employs hysteretic control with a high side current sense resistor to set the constant output current up to A. (up to 40V) Ci 0µF Floating VSET D Rs 0.ohm UM360 ISENSE LX L 00µH Applications Low Voltage Industrial Lighting Illuminated Signs DC/DC or AC/DC LED Driver Application General Purpose, Constant Current Source Benefits DC Voltage or PWM Dimming Inherent Open-Circuit LED Protection Typical Application Circuit LX VSET 3 4 ISENSE UM360Y SOT89- UM360 Pin Configurations 9

19 Reset Threshold (V) Timeout Period (Min) (ms) Watchdog Feature Watchdog Timeout Product Selection Guide Power Management μp Supervisory Part Number Description ICC (μa) Output Type Operating Temp (ºC) UM803xx Power On Reset ** 40 No NA UM809xx Power On Reset *** 40 No NA 3 UM80xx Power On Reset *** 40 No NA 3 UM80xE Power On Reset with General Manual Reset ** 40 No NA UM8xE Power On Reset with General Manual Reset ** 40 No NA UM8xE Power On Reset with General Manual Reset ** 40 No NA UM807xxE Power On Reset with.68s/6.7s/ 0.08s Manual Reset Pulse Width ** 40 No NA UM8xxE Power On Reset with.68s/6.7s/ 0.08s Manual Reset Pulse Width ** 40 No NA UM8xxE Power On Reset with.68s/6.7s/ 0.08s Manual Reset Pulse Width ** 40 No NA UM83xS Power On Reset with Manual Reset and Watchdog ** 40 Yes.6s 80 UM706xS Power On Reset with Manual Reset and Watchdog ** 40 Yes.6s 80 Open-Drain, Active Low Push-Pull, Active Low Push-Pull, Active High Open-Drain, Active Low Push-Pull, Active Low Push-Pull, Active High Open-Drain, Active Low Push-Pull, Active Low Push-Pull, Active High Push-Pull, Active High Push-Pull, Active Low -40~8 SOT3-3 SOT33-40~8 SOT3-3 SOT33-40~8 SOT3-3 SOT33-40~8 SOT43-40~8 SOT43-40~8 SOT43-40~8 SOT43-40~8 SOT43-40~8 SOT43-40~8 SOP8-40~8 SOP8 UM708xS Power On Reset with Manual Reset ** 40 No NA 80 Active Low & High -40~8 SOP8 **: Available reset threshold voltage: 4.63V, 4.38V, 4.00V, 3.08V,.93V,.63V,.3V ***: Available from.0v to.0v with 0.V interval Power Switches Part Number Description (V) ILIMIT (A) ILOAD (A) Flag Delay Time (ms) (Min) (Max) (Typ) RDS(ON) (mω) UM97S High-Side Over Current Protection Power Switch with Flag.~ SOT3- *UM97S8 High-Side Over Current Protection Power Switch with Flag.~ SOP8 *UM97AS8 High-Side Over Current Protection Power Switch without Flag.~ SOP8 *UM98S8 High-Side Over Voltage Protection Power Switch with Flag.~ SOP8 UM386P Load Switch with.8~8.0 NA 300 SOT363 *UM9 80mΩ,.A Load Switch.~... NA 80 SOT363 DFN6.0.0 Small Signal MOSFET Part Number Description BVDSS (V) VGS(TH) (V) Continuous Drain Current Rating (A) RDS(ON) (mω) VGS=- 4.V UM30S 0V Pch SOT3-3 UM30P 0V Pch SOT33 UM30S 0V Nch SOT3-3 UM30P 0V Nch SOT33 UM36 60V Nch SOT3-3 SOT33 UM86 0V Pch with Internal G-S Protection (Max) SOT3-6 *: Future product, contact factory. 0

20 Product Selection Guide Power Management Supervisory Circuit with Watchdog and Manual Reset UM706xS Manual Reset: Active-Low Reset Output Supply Current: 80μA (Typ) Minimum 40ms Reset Pulse Width.V Voltage Monitor for Power-Fail or Low-Battery Warning Independent Watchdog Timer-.6s Timeout Applications CPU and Logic Circuit Reset Power Fail Detectors Computers Embedded Systems Battery-Powered Equipments Intelligent Instruments The UM706 provides four functions: A reset output during power-up, power-down and brownout conditions. The reset output is driven active within 0µs of power supply falling through the reset voltage threshold. Reset is keeping active for a minimum of 40ms after system power supply has risen above the reset threshold. Reset threshold suitable for operation with variety of supply voltage are available. An independent watchdog output that goes low if the watchdog input has not been toggled within.6 seconds. A.V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +V. An active-low manual-reset input. Vcc Vcc RESET Vcc RESET μp Benefits PFI UM706 WDI WDO I/O LINE NMI Integrated Manual Reset and Watchdog PUSHBUTTON SWITCH MR PFO INTERRUPT UM706xS Typical Application Circuit Low Supply Current Supervisory Circuit UM809xx/UM80xx Wide Operation Voltage Range of V to 0V Typical Quiescent Current of 3μA Minimum 40ms Reset Pulse Width No External Components Required Available Reset Threshold from.0v to.0v, Step=00mV Correct Logic Output Guaranteed to V CC=.0V Push-Pull Low Active Reset Output (UM809) Push-Pull High Active Reset Output (UM80) 3-Pin Small SOT33 and SOT3 s Applications CPU and Logic Circuit Reset Power Fail Detectors Computers Embedded Systems Battery-Powered Equipments Intelligent Instruments The UM809/80 series are ultra low current, cost effective system supervisory circuits designed to monitor the power supplies in digital systems. The reset output is driven active within 0μs of power supply falling through the reset voltage threshold. Reset is keeping active for a minimum of 40ms after system power supply has risen above the reset threshold. Reset threshold suitable for operation with variety of supply voltage are available. RESET (RESET)* ( )* for UM80 3 VCC UM809xx/UM80xx Pin Configurations (SOT3-3, SOT33) Benefits No External Components Required, Saving PCB Space Wide Operation Voltage Range of V to 0V Ultra Low Quiescent Current: 3μA (Typ)

21 Product Selection Guide Power Management 4-Pin μp Voltage Monitor with Manual Reset Input UM80/UM8/UM8 No External Components V CC Transient Immunity Correct Logic Output Guaranteed to V CC=.0V Precision V CC Monitoring of 3.0V, 3.3V and.0v Supplies μa Supply Current 40ms Minimum Power-On Reset Pulse Width Available in 3 Output Configurations: Open-Drain Active-Low RESET Output (UM80) Push-Pull Active-Low RESET Output (UM8) Push-Pull Active-High RESET Output (UM8) 4-Pin SOT43 Wide Operation Temperature: -40 C to +8 C V CC MR PUSHBUTTON SWITCH *UM80 ONLY ( ) are for UM8 VCC UM80 UM8 UM8 RESET (RESET) Rpullup* Typical Application Circuit RESET INPUT VCC µp Applications Computers Controllers Portable/Battery-Powered Equipments Intelligent Instruments Critical μp and μc Power Monitoring RESET (RESET) ( ) are for UM8 UM80/UM8/UM8 Pin Configurations 4 3 VCC MR μp Reset Circuit with Long Manual Reset Setup Period UM807/UM8/UM8 No External Components V CC Transient Immunity Correct Logic Output Guaranteed to V CC=.0V Precision V CC Monitoring of 3.0V, 3.3V and.0v Supplies μa Supply Current 40ms Minimum Power-On Reset Pulse Width Available in 3 Manual Reset Setup Periods (t MR): A, 0.08s; B, 6.7s; C,.68s Available in 3 Output Configurations: Open-Drain Active-Low RESET Output (UM807) Push-Pull Active-Low RESET Output (UM8) Push-Pull Active-High RESET Output (UM8) 4-Pin SOT43 Wide Operation Temperature: -40 C to +8 C Applications Set-Top Boxes Consumer Electronics DVD Players Cable/DSL Modems Industrial Equipments Automotive Systems Medical Devices Vcc MR MR RESET RESET *UM807 ONLY ( ) are for UM8 VCC UM807 UM8 UM8 RESET (RESET) Rpullup* RESET VCC µp RESET PULSE WIDTH 40ms MR SETUP PERIOD Typical Application Circuit and Manual Reset Setup Period tmr tpw

22 Product Selection Guide Analog and Data Switches Low Ron Analog Switches (Ron<Ω) Part Number VCC (V) Features RON (Ω) (Typ) Bandwidth (MHz) Off 00kHz (db) 00kHz (db) UM47.6~4.3 Single SPDT SOT363 UM68.8~4.4 Dual SPDT UM4684.8~. Dual SPDT QFN0.8.4 QFN0..6 CSP0.0. MSOP0 UM3.6~4. Dual SPDT QFN0.8.4 UM3699A.6~. Dual DPDT QFN High Bandwidth Data Switches (BW>00MHz) Part Number VCC (V) Features RON (Ω) (Max) Bandwidth (MHz) Off Isolation (db)** Cross-Talk (db)** UM36.6~. Single SPDT, Low ICCT SOT363 UM37.6~. Single SPDT, Low ICCT SOT363 UM37.6~. Dual SPDT, Low ICCT DFN UM38.6~. Dual SPDT, Low ICCT DFN UM477.8~. Dual SPDT CSP0.9.4 QFN0.8.4 UM48Q.8~. Dual SPDT QFN0.8.4 UM3670.8~. Dual DPDT UM7.7~. Dual SPDT 9 0 0MHz 0MHz QFN QFN6.6.8 QFN0.8.4 QFN0..6 MSOP0 *UM77.7~. Dual SPDT MHz 0MHz QFN0.8.4 UM9636.7~ Dual SPDT QFN0.8.4 *UM3.7~.0 Single DPDT, Negative Signal Capability 4.6 (Audio). (USB) 900 (USB) 00kHz 00kHz QFN0.8.4 Video Switch Part Number VCC (V) Features RON (Ω) (Max) Bandwidth (MHz) Off Isolation (db)** Cross-Talk (db)** UM330.8~. Quad SPDT TSSOP6 *: Future product, contact factory. **: Typically, the spec value is measured at f=0mhz, otherwise see the measurement condition in the table. 3

23 Product Selection Guide Analog and Data Switches High Speed USB.0 (480Mbps) DPDT Switch UM7/UM7A/UM7MA OVT on D+ and D- up to.v Power Off Protection: When V CC=0V, D+ and D- Can Tolerate up to.v Low Crosstalk: -0dB (0MHz) Low Current Consumption: µa Channel On-Capacitance: 6.pF (Typ) V CC Operating Range: +.7V to +.V 0MHz Bandwidth (or Data Frequency) ESD Rating: ±4kV I/O to Applications Differential Signal Data Routing USB.0 Signal Routing Cell Phones, PDAs, Digital Cameras and Notebooks LCD Monitors, TV and Set-Top Boxes Benefits OVT on D+ and D- Power Off Protection The UM7/UM7A/UM7MA is a dual port high-speed, low-power data switch optimized for USB.0 signal switching. The UM7/UM7A/UM7MA switch is configured in double-pole/ double-throw DPDT. It handles bidirectional signal flow, achieving a 0 MHz -3dB bandwidth, and a port to port crosstalk and isolation at -0dB at 0MHz. The UM7/UM7A/UM7MA operates from a single +.7V to +.V supply, with current consumption less than μa. The UM7/UM7A/UM7MA features wide bandwidth and low bit-to-bit skew allow it to pass high-speed differential signal with good signal integrity, offers little or no attenuation of the high-speed signals at the outputs. Its high channel-to-channel crosstalk rejection results in minimal noise interface. Its bandwidth is wide enough to pass high-speed USB.0 differential signals (480Mbps). The control logic threshold is guaranteed to be compatible with.8v logic. OE Vcc S HSD_ HSD_ 7 control UM7 QFN0.8.4, Top View 6 HSD+ HSD+ 4 3 D- D+ Vcc 0 OE S HSD_ HSD_ D- 8 control UM7A QFN0..6, Top View 7 UM7/UM7A/UM7MA Pin Configurations 6 HSD+ HSD+ D+ S HSD+ HSD+ D D- UM7MA MSOP VCC OE HSD- HSD- High Voltage, High Bandwidth DPDT Data Switch UM9636 Ron is Typically 83Ω at V CC=V Channel On-Capacitance: 6.pF (Typ) Typically 70MHz -3dB Bandwidth Low Crosstalk: Typically -67dB (0MHz) Low Off-Isolation: Typically -8dB (0MHz) Low Voltage,.6V CMOS/TTL Compatible Low Current Consumption: μa V CC Operating Range: +.7V to +V Lead (Pb)-Free QFN0.8.4 The UM9636 is a high-speed, low-power dual single-pole/double-throw (SPDT) analog switch that operates from a single +.7V to +V supply. The UM9636 features 70MHz -3dB bandwidth, -67dB crosstalk and -8dB off-isolation at 0MHz frequency. Wide bandwidth and low on resistant allow it to pass high-speed differential signal with good signal integrity. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. Its high channel-to-channel crosstalk rejection results in minimal noise interference. Key applications for the UM9636 are logic level translation, pulse generator, and high speed or low noise signal switching in precision instrumentations and portable device designs. Applications High-End Data Acquisition Medical Instruments Precision Instruments High Speed Communications Applications Automated Test Equipments Sample and Hold Applications V+ A A SA SB control D D SB Benefits Low Voltage,.6V CMOS/TTL Compatible SA UM9636 QFN0.8.4, Top View UM9636 Pin Configuration 4

24 Product Selection Guide Interface and System Interconnect RS48 Interface Part Number Description Data Rate (Mbps) (Min) Fail Safe Transceivers on Bus Contact ESD (kv) Air UM308E V Supply, TX/RX RS48 Interface 0. Yes 6 ±8 ± UM3088E V Supply, TX/RX RS48 Interface. Yes 6 ±8 ± SOP8 DIP8 SOP8 DIP8 UM3483E 3.3V to.0v Supply, TX/RX RS48 Interface 0. Yes 6 ±8 ± SOP8 DIP8 UM3486E 3.3V to.0v Supply, TX/RX RS48 Interface. Yes 6 ±8 ± SOP8 DIP8 UM33E V Supply, TX/RX RS48 Interface 0. Yes 6 ±8 ± SOP8 DIP8 *UM3087E V Supply, TX/RX RS48 Interface Auto Polarity Reversal 0. Yes 6 ±8 ± SOP8 DIP8 *UM3487E 3.3V to.0v Supply, TX/RX RS48 Interface Auto Polarity Reversal 0. Yes 6 ±8 ± SOP8 DIP8 RS4 Interface Part Number Description Data Rate (Mbps) (Min) Fail Safe Transceivers on Bus Contact ESD (kv) Air UM49E V Supply, TX/RX RS4 Interface. Yes 6 ±8 ± UM349E 3.3V to.0v Supply, TX/RX RS4 Interface 0 Yes 6 ±8 ± *UM488E V Supply, TX/RX RS4 Interface. Yes 6 ±8 ± *UM3488E 3.3V to.0v Supply, TX/RX RS4 Interface 0 Yes 6 ±8 ± SOP4 DIP4 SOP4 DIP4 SOP8 DIP8 SOP8 DIP8 RS3 Interface Part Number Description Data Rate Operating ESD (kv) Fail Safe (kbps) Temperature (ºC) Contact Air SOP6 UM0EExE Single V Powered TX/RX 0-40~+8 Yes ±8 ± DIP6 TSSOP6 UM3ECxE Single V Powered TX/RX 0 0~+70 Yes ±8 ± SOP6 DIP6 TSSOP6 UM3EExE Single V Powered TX/RX 0-40~+8 Yes ±8 ± SOP6 DIP6 TSSOP6 UM33EExE 3V~.V Powered TX/RX 0-40~+8 Yes ±8 ± TSSOP6 SOP6 SSOP6 DIP6 UM3EEUE 3V~.V Powered TX/RX with Enable and Shutdown Control 0-40~+8 Yes ±8 ± TSSOP0 UM3EExE 3V~.V Powered TX/RX TSSOP6 0-40~+8 Yes ±8 ± with Enable and Shutdown Control SSOP6 UM343EExx 3V~.V Powered 3TX/RX 0-40~+8 Yes ±8 ± TSSOP8 SSOP8 SOP8 QFN3.0.0 *: Future product, contact factory.

25 Product Selection Guide Interface and System Interconnect s Part Number Description UM330 -Bit Auto Direction Detect, CMOS Output UM330H -Bit Auto Direction Detect, CMOS Output UM Bit Auto Direction Detect, CMOS Output UM Bit Auto Direction Detect, CMOS Output UM30 -Bit Auto Direction Detect, for Push-Pull or Open-Drain Applications UM304 4-Bit Auto Direction Detect, for Push-Pull or Open-Drain Applications UM3 -Bit Auto Direction Detect, for Push-Pull or Open-Drain Applications UM00 -Bit Auto Direction Detect, for Push-Pull or Open-Drain Applications UM00P -Bit Auto Direction Detect, for Push-Pull or Open-Drain Applications VCCA VCCB Max Data Rate (Mbps) (V) (V) VCCA=3.3V ESD (kv) (B Port).~3.6.6~. 00 ± SOT63 DFN6.4.0.~3.6.6~. 00 ± CSP CSP.9.4.~3.6.6~. 00 ±4 QFN QFN6.8.6.~3.6.6~. 00 ± CSP0.7.4 CSP ~3.6.3~. 4Mbps (Push-Pull) DFN8.7.3 ± Mbps (Open-Drain) QFN0.8.4 VSSOP8.6~3.6.3~. CSP.9.4 4Mbps (Push-Pull) ± QFN Mbps (Open-Drain) TSSOP4.0~3.3.8~.0 3.4Mbps (Max) ±4 MSOP8 DFN8..6.0~3.3.8~.0 3.4Mbps (Max) ±4 TSSOP8 SOP8.0~3.3.8~.0 3.4Mbps (Max) ±4 SOT363 6

26 Product Selection Guide Interface and System Interconnect ±kv ESD-Protected, Slew-Rate-Limited, High-Speed and Fail-Safe RS48 Transceiver UM308E/UM3483E ESD Protection for RS-48 I/O Pins ±kv Human Body Model ±kv IEC , Air Discharge True Fail-Safe Protection Low Current Shutdown Mode -7V to +V Common-Mode Input Voltage Range Allows up to 6 Transceivers on the Bus Current Limiting for Driver Overload Protection UM308: +.0V Powered UM3483: +3.0V to +.V Powered Applications RS-48 Transceivers Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks The UM308E, UM3483E are ±kv electrostatic discharge (ESD)-protected, high-speed transceivers for RS-48 communication that contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open, shorted or idle. This means that the receiver output will be logic high if all transmitters on a terminated bus are disabled (high impedance). RO RE DE DI 3 R UM308/UM3483 Pin Configurations D V CC B A Fail-Safe, Single Supply RS-3 Transceiver UM33E/UM3E Meets True EIA/TIA-3-F Standards from a +3.0V to +.V Power Supply Enhanced ESD Specifications: ±kv Human Body Mode ±kv IEC Air Discharge ±8kV IEC Contact Discharge μa Low Power Shutdown (UM3E) 0 kbps Minimum Transmission Rate Guaranteed 30V/μs Max Slew Rate Compatible with.8v V CC=3.3V Applications Notebooks and Palmtop Computers Battery-Powered Equipments Hand-Held Equipments POS Terminals The UM3E/UM33E is dual driver, dual receiver RS-3 transceiver solutions intended for portable or hand-held applications. The UM3E features a μa shutdown mode that reduces power consumption in battery-powered portable systems. The UM3E and UM33E are pin, package, and functionally compatible with the industry standard products pin out, respectively. +3.3V C TTL/CMOS INPUTS C C + VCC C+ + 3 C- 4 C+ + C- +3.3V 0 TIN TIN 400k +3.3V 400k 6 UM33E C3 V+ C4 6 V- + TOUT TOUT RS-3 OUTPUTS +3.3V C TTL/CMOS INPUTS C C + VCC C+ + 4 C- C+ + 6 C- +3.3V 3 TIN TIN 400k +3.3V 400k 9 UM3E C3 3 V+ C4 7 V- + TOUT TOUT RS-3 OUTPUTS ROUT RIN 3 ROUT RIN 6 TTL/CMOS OUTPUTS 9 ROUT k RIN 8 RS-3 INPUTS TTL/CMOS OUTPUTS 0 ROUT k RIN 9 RS-3 INPUTS k EN k 0 SHDN 8 UM33E/UM3E Typical Operating Circuits 7

27 Product Selection Guide Interface and System Interconnect +3V to +.V, 3-Driver/-Receiver RS-3 Transceiver with Auto Shutdown UM343 Meets True EIA/TIA-3-F Standards from a +3.0V to +.V Power Supply Enhanced ESD Specifications: ±kv Human Body Mode ±kv IEC Air Discharge ±8kV IEC Contact Discharge μa Low Power Shutdown 0kbps Minimum Transmission Rate Guaranteed 30V/μs Max Slew Rate Latch-Up Performance Exceeds 00mA Hot Swap and Fail-Safe I/O Logic Compatible with.8v V CC=3.3V SOP8, SSOP8, TSSOP8 and QFN3.0.0 s The UM343 is a 3-driver/-receiver RS-3 transceiver with auto shutdown and low supply current. When the UM343 does not sense a valid signal level on their receiver inputs, the on-board power supply and drivers shut down. The UM343 requires only 4 0.μF capacitors in 3.3V operation, and can operate from input voltages ranging from +3.0V to +.V. It is ideal for 3.3V-only systems, mixed 3.3V and.0v systems, or.0v-only systems that require true RS-3 performance. +3.3V 0.µF C 0.µF C 0.µF C+ C+ C- C- TIN VCC UM343 + V+ V- TOUT C3 0.µF + C4 0.µF Applications Battery-Powered Systems PDAs Notebooks Laptops Palmtop PCs Hand-Held Equipments TTL/ CMOS INPUTS TTL/ CMOS OUTPUTS TIN T3IN ROUTB ROUT ROUT R3OUT TOUT T3OUT RIN k RIN k R3IN k RS-3 OUTPUTS RS-3 INPUTS R4OUT R4IN k ROUT RIN k FORCEON VCC TO POWER MANAGEMENT UNIT FORCEOFF INVALID UM343 Typical Operating Circuit 8

Product Selection Guide Interface and System Interconnect /4-Bit Bidirectional Voltage-Level Translator for Open-Drain and Push-Pull Applications UM30/UM304 Max Data Rates: 4Mbps (Push-Pull), Mbps

28 Product Selection Guide Interface and System Interconnect /4-Bit Bidirectional Voltage-Level Translator for Open-Drain and Push-Pull Applications UM30/UM304 Max Data Rates: 4Mbps (Push-Pull), Mbps (Open-Drain) -Bit for UM30 4-Bit for UM304 Bidirectional, No Direction Control Required.6V to 3.6V on A Port and.3v to.v on B Port (V CCA V CCB) ±kv ESD Protection on B Port No Power-Supply Sequencing Required V CCA or V CCB Can be Ramped First The UM30/UM304 is /4 channel ESD-protected level translator provide the level shifting necessary to allow data transfer in a multi-voltage system. Externally applied voltages, V CCB and V CCA, set the logic levels on either side of the device. A low-voltage logic signal present on the V CCA side of the device appears as a high-voltage logic signal on the V CCB side of the device, and vice-versa. VCCA PU ONE-SHOT BLOCK GATE BIAS ONE-SHOT BLOCK PU VCCB Applications SPI, MICROWIRE and I C Level Translation Low-Voltage ASIC Level Translation Portable POS Systems Portable Communication Devices Low-Cost Serial Interfaces Cell-Phones GPS Telecommunications Equipments DFN8.7.3 VCCA 8 VCCB A 7 B A 3 6 B 4 OE I/O VA_ I/O VB_ N Block Diagram of UM30/UM304 I/O Cell QFN0.8.4 CSP VCCA VCCB A 4 A A 3 0 B VCCA 3 6 OE A 4 9 B 7 VCCB OE 8 B 8 B 6 7 QFN CSP.9.4 VCCA A A 3 A3 4 A4 6 7 TSSOP4 UM30Q UM30A UM30H UM304H UM304Q UM304UE 4 VCCB 3 B B B3 0 B4 9 8 OE //4/8-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing UM330/UM330/UM3304/UM3308 Max Data Rates: 00Mbps -Bit for UM330, -Bit for UM330 4-Bit for UM3304, 8-Bit for UM3308 Bidirectional, No Direction Control Required.V to 3.6V on A Port and.6v to.v on B Port (V CCA V CCB) Enhanced ESD Protection on B Ports V CC Isolation Feature: If Either V CC Input is at, All Outputs are in the High-Impedance State OE Input Circuit Referenced to V CCA Low Power Consumption Applications Low-Voltage ASIC Level Translation Portable POS Systems Portable Communication Devices Low-Cost Serial Interfaces Cell-Phones Telecommunications Equipments VCCA SOT63 6 VCCB DFN6.4.0 VCCA 6 VCCB UM330/UM330/UM3304/UM3308 is level translator with auto direction sensing and enhanced ESD protection. This non-inverting translator uses two separate configurable power-supply rails. The A port is designed to track V CCA. V CCA accepts any supply voltage from.v to 3.6V. The B port is designed to track V CCB. V CCB accepts any supply voltage from.6v to.v. CSP A VCCA A OE VCCA I/O A CSP.9.4 P One Shot 4K N One Shot P One Shot 4K N One Shot Block Diagram of UM3304 I/O Cell QFN VCCB I/O B QFN6.6.8 CSP0.7.4 OE OE 7 VCCB A 3 4 B A 3 4 B B 8 B UM330B UM330DA UM330H UM3304 UM3304Q UM3304QT UM3308 9

29 Product Selection Guide EMI Filters Audio/CRC EMI Filters Protected Part Number Lines VRWM (V) (Max) R (Ω) (Typ) VR=.V (pf) f3db ESD (kv) (MHz) (Typ) Contact Air UM00 - ±8 ± SOT3-6 UM ±8 ± DFN8..6 UM ±8 ± DFN8.7.3 UM ±8 ± DFN UM ±8 ± DFN..3 UM ±8 ± DFN UM ±8 ± DFN CLC EMI Filters Part Number Protected Lines VRWM (V) (Max) L (nh) (Typ) DCR (Ω) (Typ) VR=.V (pf) f3db (MHz) (Typ) Contact ESD (kv) Air UM ±8 ± DFN8.0.0 UM ±8 ± DFN8.7.3 UM ±8 ± DFN UM ±8 ± DFN UM ±8 ± DFN8.0.0 UM ±8 ± DFN8.7.3 UM ±8 ± DFN UM ±8 ± DFN UM ±8 ± DFN UM ±8 ± DFN8.0.0 UM ±8 ± DFN8.7.3 UM ±8 ± DFN UM ±8 ± DFN

30 Product Selection Guide ESD Protection USB Port and Ethernet Port Protection Protected Part Number Description Lines VRWM (V) (Max) VR=0V, ESD (kv) I/O Pin to (pf) Contact Air (Max) UM0EEDF Unidirection ±8 ± SOT43 UM04EExF Unidirection 4 ±8 ± SOT363 SOT63 SOT3-6 UM04EECD Unidirection 4 ±8 ± SOT3-6 UM04EECE Unidirection 4 ±8 ± SOT3-6 UM304EExF Unidirection 4 ±8 ± SOT363 SOT63 SOT3-6 *UM404EECF Unidirection for Ethernet 0/00 4 ±8 ± SOT3-6 General Purpose Protection VRWM Part Number Description Protected Lines (V) (Max) CJ VR=0V ESD (kv) (Typ) Contact Air UM0 Unidirection 40 ±8 ± SOD3 UM09 Unidirection 40 ±8 ± DFN UM09T Unidirection 90 ±30 ±30 DFN UM060 Bi-direction 40 ±30 ±30 SOD3 UM080 Bi-direction ±30 ±30 DFN UM080T Bi-direction 4 ±30 ±30 DFN UESD6V8LF Unidirection 7 ±8 ± DFN UM0DA Unidirection 9 ± ±30 DFN UM0DA Bi-direction 7 ±30 ±30 DFN SM0 Unidirection 0 ±8 ± SOT3-3 UM06 Unidirection 40 ±8 ± QFN3.4. UESD6V8SB Unidirection 40 ±8 ± SOT3 UESD4B Unidirection 4 40 ±8 ± SOT33 UESDB Unidirection 4 40 ±8 ± SOT63 UESD64B Unidirection 4 40 ±8 ± SOT3 UESD6V8S4C Unidirection 4 0 ±8 ± SOT3-6 UESD6V8L4A Unidirection 4 0 ±8 ± SOT33 UESD6V8L4B Unidirection 4 0 ±8 ± SOT3 UESD6B Unidirection 40 ±8 ± SOT63 UESD6V8CT36 Unidirection 40 ±8 ± SOT363 UESD6V8LA6 Unidirection 0 ±8 ± SOT363 UESD6V8LB Unidirection 8 ±8 ± SOT63 UESD7B Unidirection 6 40 ±8 ± DFN6.6.6 *: Future product, contact factory.

31 Product Selection Guide ESD Protection High and Medium Working Voltage Part Number Description Protected Lines VRWM (V) (Max) VR=0V (pf) (Typ) Contact ESD (kv) Air SM Unidirection 0 ±8 ± SOT3-3 SM Unidirection 0 ±8 ± SOT3-3 UM07 Unidirection 7 40 ±8 ± SOD3 UM079 Unidirection 7 40 ±8 ± DFN UM0 Unidirection 0 ±30 ±30 SOD3 UM09 Unidirection 0 ±30 ±30 DFN UESD6V8S4C Unidirection 4 0 ±30 ±30 DFN.0 0.6

Product Selection Guide ESD Protection Single Line ESD Protection Diode in DFN0603 UM0DA/UM0DA UM0DA ESD Protection Class: IEC 6000-4- ±30kV (Air), ±kv (Contact) UM0DA ESD Protection Class: IEC

32 Product Selection Guide ESD Protection Single Line ESD Protection Diode in DFN0603 UM0DA/UM0DA UM0DA ESD Protection Class: IEC ±30kV (Air), ±kv (Contact) UM0DA ESD Protection Class: IEC ±30kV (Air), ±30kV (Contact) Protect One I/O or Power Line Low Clamping Voltage Stand-Off Voltage: V Low Leakage Current Ultra Small 0.6mm 0.3mm Outline The UM0DA/UM0DA ESD protection diode is designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers and PDAs. The devices are available in DFN 0.6mm 0.3mm package with working voltage of volt. It gives designer the flexibility to protect one unidirectional (UM0DA) or one bi-directional (UM0DA) line in applications where arrays are not practical. Additionally, it may be sprinkled around the board in applications where board space is at a premium. Applications Cell Phone Handsets and Accessories Personal Digital Assistants (PDAs) Notebooks, Desktops and Servers Portable Instrumentations Digital Cameras MP3 Players Ultra Small DFN UM0DA Pin Configuration UM0DA Pin Configuration 3

Company Profile. Union Semiconductor.

Company Profile. Union Semiconductor. Company Profile Who We Are Founded in 001, is a fabless integrated circuit design company, engaged in inventing, designing and marketing high performance linear and mixed-signal integrated circuits (ICs)