0.8%ACCURACY 0.7V OUTPUT 400mA LDO REGULATOR

Transcription

1 SERIES.8%ACCURACY.7V OUTPUT 4mA LDO REGULATOR OUTLINE The Series are low voltage 4mA voltage regulator. These ICs had been further improved of lowvoltage capability compared with previous low-voltage product. The input voltage is as low as Min. 1.V and the output voltage can be set from.7v. The output voltage accuracy has been improved to.8% and due to a built-in transistor with low on-resistance of.55 (at VOUT 1.5V). Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, and a current limit circuits for over-current for the destruction prevention by the over-current. The CE pin can switch the regulator to standby mode. In addition to SOT-23-5 and SC-88A packages, a.69mm square WLCSP-4-P5 package and a 1.2mm square DFN(PLP) are also available. FEATURES Supply Current... Typ. 48 A Standby Current... Typ..1 A Ripple Rejection... Typ. 6dB (f 1kHz) Input Voltage Range... 1.V to 3.6V Range....7V to 1.8V (.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) Accuracy....8% (VOUT 1.V, Topt 25 C) Temperature-Drift Coefficient of... Typ. 6ppm/ C Dropout Voltage... Typ..22V (VOUT 1.5V) Line Regulation... Typ..1%/V Packages... WLCSP-4-P5, DFN(PLP)1212-6, SC-88A, SOT-23-5 Built-in Fold Back Protection Circuit... Typ. 11mA (Current at short mode) Built-in Constant Slope Circuit Ceramic capacitors are recommended to be used with this IC F or more APPLICATIONS Power source for portable communication equipment. Power source for electrical appliances such as cameras, VCRs and camcorders. Power source for battery-powered equipment. 1

2 BLOCK DIAGRAMS xxxb xxxd VDD VOUT VDD VOUT Vref Current Limit Vref Current Limit CE GND CE GND SELECTION GUIDE The output voltage, auto discharge function, package, and the taping type, etc. for the ICs can be selected at the user s request. Product Name Package Quantity per Reel Pb Free Halogen Free RP16Zxx1 -TR-F WLCSP-4-P5 5, pcs Yes Yes RP16Kxx1 -TR DFN(PLP) , pcs Yes Yes RP16Qxx2 -TR-FE SC-88A 3, pcs Yes Yes RP16Nxx1 -TR-FE SOT , pcs Yes Yes xx :Setting (VOUT) : Fixed Type: 7 to 18 Stepwise setting with.1v increment in the range from.7v to 1.8V Exception: 1.25V=12x 5-xx 1.85V=18x 5-xx :Designation of Active Type: B: H Active, without auto discharge function at off state. D: H Active, with auto discharge function at off state. 2

3 PIN CONFIGURATIONS WLCSP-4-P5 DFN(PLP) Silicon Side Bump Side Top View Bottom View A B B A SC-88A SOT (mark side) (mark side) PIN DESCRIPTIONS WLCSP-4-P5 DFN(PLP) Pin No. Symbol Description Pin No. Symbol Description A1 VDD Input Pin 1 NC No Connection A2 VOUT Output Pin 2 GND Ground Pin B1 CE Chip Enable Pin ("H" Active) 3 CE Chip Enable Pin ("H" Active) B2 GND Ground Pin 4 VDD Input Pin 5 NC No Connection 6 VOUT Output Pin SC-88A SOT-23-5 Pin No. Symbol Description Pin No. Symbol Description 1 CE Chip Enable Pin ("H" Active) 1 VDD Input Pin 2 NC No Connection 2 GND Ground Pin 3 GND Ground Pin 3 CE Chip Enable Pin ("H" Active) 4 VOUT Output Pin 4 NC No Connection 5 VDD Input Pin 5 VOUT Output Pin Pin No. 2 is connected to the bottom of the IC. It is recommended that the pin be connected to the ground plane on the board, or otherwise be left floating so that there is no contact with other potentials. 3

4 ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN Input Voltage 4. V VCE Input Voltage (CE Pin).3 to 4. V VOUT.3 to VIN.3 V IOUT Output Current 5 ma PD Power Dissipation (WLCSP-4-P5) 278 Power Dissipation (DFN(PLP)1212-6) 4 Power Dissipation (SC-88A) 38 Power Dissipation (SOT-23-5) 42 Topt Operating Temperature Range 4 to 85 C Tstg Storage Temperature Range 55 to 125 C ) For Power Dissipation, please refer to PACKAGE INFORMATION. ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured. mw 4

5 ELECTRICAL CHARACTERISTICS VIN Set VOUT 1V, IOUT 1mA, CIN COUT 1 F, unless otherwise noted. The specifications surrounded by are guaranteed by Design Engineering at 4 C Topt 85 C. Topt 25 C Symbol Item Conditions Min. Typ. Max. Unit VOUT Topt 25 C 4 C Topt 85 C VOUT 1.V V VOUT < 1.V 8 8 mv VOUT 1.V V VOUT < 1.V mv IOUT Output Current 4 ma VOUT/ IOUT Load Regulation 1mA IOUT 4mA mv VDIF Dropout Voltage Refer to the following table ISS Supply Current IOUT ma A Istandby Standby Current VCE V.1 8. A VOUT/ VIN Line Regulation RR Ripple Rejection Set VOUT.5V VIN 3.6V In case that Set VOUT <.8V, 1.3V VIN 3.6V f 1kHz, Ripple.2Vp-p VIN Set VOUT 1V, IOUT 3mA.1.25 %/V 6 db VIN Input Voltage V VOUT/ Topt Temperature Coefficient 4 C Topt 85 C ISC Short Current Limit VOUT V 11 ma VCEH CE Input Voltage "H".9 V VCEL CE Input Voltage "L".4 V en RLOW Output Noise Low Output Nch Tr. ON Resistance (of D version) BW 1Hz to 1kHz IOUT 3mA, VOUT.7V 6 ppm / C 3 Vrms VIN 2.V, VCE V 43 All test items listed under Electrical Characteristics are done under the pulse load condition (Tj Ta=25 C) except Output Noise, Ripple Rejection and Temperature Coefficient items. 5

6 The specifications surrounded by are guaranteed by Design Engineering at 4 C Topt 85 C. Dropout Voltage by Dropout Voltage VDIF (V) VOUT (V) Condition Typ. Max..7 VOUT < VOUT < VOUT < IOUT 4mA 1. VOUT < VOUT < VOUT Topt 25 C RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS) All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions. 6

7 TYPICAL APPLICATION VDD VOUT VOUT C1 Series C2 CE Control CE GND (External Components) C1, C2 Ceramic 1. F MURATA: GRM155B31A15KE15 TECHNICAL NOTES When using these ICs, consider the following points: Phase Compensation In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, use a capacitor C2 with 1. F or more. If a tantalum capacitor is used, and its ESR (Equivalent Series Resistance) of C2 is large, the loop oscillation may result. Because of this, select C2 carefully considering its frequency characteristics. PCB Layout Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a capacitor C1 with a capacitance value as much as 1. F or more between VDD and GND pin, and as close as possible to the pins. Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring as short as possible. Impedance of Input pin CE pull-down constant current circuit is built in the. However, if the CE pin is floating and the wiring is long, the malfunction may occur by noise. Therefore, fully evaluation on the actual PCB is necessary. 7

8 CONSTANT SLOPE CIRCUITS The Series is equipped with a constant slope circuit as a soft-start circuit, which allows the output voltage to start up gradually when the CE is turned on. The constant slope circuit minimizes the inrush current at the start-up and also prevents the overshoot of the output voltage. The capacitor to create the start-up slope is built in the IC that does not require any external components. The start-up time and the start-up slope angle are fixed inside the IC. For more details, please refer to the graph 15 of Inrush Current Characteristics Example. Inrush Current Characteristics Example (C1=1. F, Topt=25ºC) 7xB/D 12xB/D CE Input Voltage VCE / VOUT (V) CE Input Voltage Inrush Current VIN=1.7V COUT=1.µF COUT=1µF COUT=22µF Inrush Current (ma) CE Input Voltage VCE / VOUT (V) CE Input Voltage Inrush Current VIN=2.2V COUT=1.µF COUT=1µF COUT=22µF Inrush Current (ma) Time t (µs) Time t (µs) 18xB/D CE Input Voltage VCE / VOUT (V) CE Input Voltage VIN=2.8V COUT=1.µF COUT=1µF COUT=22µF Inrush Current Inrush Current (ma) Time t (µs) 8

9 PACKAGE INFORMATION Power Dissipation (WLCSP-4-P5) Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: * Measurement Conditions Standard Land Pattern Environment Mounting on Board (Wind velocity=m/s) Board Material Glass cloth epoxy plastic (Double sided) Board Dimensions 4mm 4mm 1.6mm Copper Ratio Top side : Approx. 5%, Back side : Approx. 5% Through-hole.5mm 28pcs * Measurement Result (Ta=25 C, Tjmax=125 C) Standard Land Pattern Power Dissipation 278mW Thermal Resistance ja = ( C)/.278W = 36 C/W jc = 46 C/W 5 4 Power Dissipation PD (mw) On Board Ambient Temperature ( C) Power Dissipation Measurement Board Pattern IC Mount Aria (Unit : mm) 9

10 Package Dimensions (WLCSP-4-P5) A.69 B.4 X INDEX.1 S B A M S AB S.6 S.8.3 Unit: mm Mark Specification (WLCSP-4-P5) : Lot No.... Alphanumeric serial number

11 RP16Z Series marking list table (WLCSP-4-P5) RP16ZxxxB RP16ZxxxD Product Name VSET Product Name VSET RP16Z71B.7V RP16Z71D.7V RP16Z81B.8V RP16Z81D.8V RP16Z91B.9V RP16Z91D.9V RP16Z11B 1.V RP16Z11D 1.V RP16Z111B 1.1V RP16Z111D 1.1V RP16Z121B 1.2V RP16Z121D 1.2V RP16Z131B 1.3V RP16Z131D 1.3V RP16Z141B 1.4V RP16Z141D 1.4V RP16Z151B 1.5V RP16Z151D 1.5V RP16Z161B 1.6V RP16Z161D 1.6V RP16Z171B 1.7V RP16Z171D 1.7V RP16Z181B 1.8V RP16Z181D 1.8V RP16Z121B5 1.25V RP16Z121D5 1.25V RP16Z181B5 1.85V RP16Z181D5 1.85V 11

12 Power Dissipation (DFN(PLP)1212-6) Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: Measurement Conditions Standard Test Land Pattern Environment Mounting on Board (Wind velocity=m/s) Board Material Glass cloth epoxy plastic (Double sided) Board Dimensions 4mm 4mm 1.6mm Copper Ratio Top side: Approx. 5%, Back side: Approx. 5% Through-holes.54mm 28pcs Measurement Result Power Dissipation Thermal Resistance (Ta=25 C, Tjmax=125 C) Standard Test Land Pattern 4mW θja=( C)/.4W=25 C/W θjc=67 C/W 7 4 Power Dissipation PD (mw) On Board Ambient Temperature ( C) Power Dissipation Measurement Board Pattern IC Mount Area Unit : mm 12

13 Package Dimensions (DFN(PLP)1212-6) X4 A B C INDEX.4Max M AB Bottom View (Unit : mm) S.5 S Mark Specification (DFN(PLP)1212-6) : Product Code... Refer to the marking list table : Lot No... Alphanumeric serial number

14 RP16K Series marking list table (DFN(PLP)1212-6) RP16KxxxB RP16KxxxD Product Name 12 VSET Product Name 12 VSET RP16K71B NA.7V RP16K71D PA.7V RP16K81B NB.8V RP16K81D PB.8V RP16K91B NC.9V RP16K91D PC.9V RP16K11B ND 1.V RP16K11D PD 1.V RP16K111B NE 1.1V RP16K111D PE 1.1V RP16K121B NF 1.2V RP16K121D PF 1.2V RP16K131B NG 1.3V RP16K131D PG 1.3V RP16K141B NH 1.4V RP16K141D PH 1.4V RP16K151B NJ 1.5V RP16K151D PJ 1.5V RP16K161B NK 1.6V RP16K161D PK 1.6V RP16K171B NL 1.7V RP16K171D PL 1.7V RP16K181B NM 1.8V RP16K181D PM 1.8V RP16K121B5 NP 1.25V RP16K121D5 PP 1.25V RP16K181B5 NQ 1.85V RP16K181D5 PQ 1.85V 14

15 Power Dissipation (SC-88A) Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below; Measurement Conditions Standard Land Pattern Environment Mounting on Board (Wind velocity=m/s) Board Material Glass cloth epoxy plastic (Double Layers) Board Dimensions 4mm 4mm 1.6mm Copper Ratio Top side: Approx. 5%, Back side: Approx. 5% Through-hole.5mm 44pcs Measurement Result (Ta=25 C, Tjmax=125 C) Standard Land Pattern Free Air Power Dissipation 38mW 15mW Thermal Resistance θja=( C)/.38W=263 C/W θja=( C)/.15W=667 C/W θjc=75 C/W Power Dissipation PD (mw) On Board Free Air Ambient Temperature ( C) Power Dissipation Measurement Board Pattern IC Mount Area (Unit : mm) 15

16 Package Dimensions (SC-88A) A 2.±.2 1.3±.2 B.15±.7.36± ± ~ S AB Max. S.1 S ~.1 Unit : mm Mark Specification (SC-88A) : Product Code... Refer to the marking list table : Lot No... Alphanumeric serial number

17 RP16Q Series marking list table (SC-88A) RP16QxxxB RP16QxxxD Product Name 1234 VSET Product Name 1234 VSET RP16Q72B Q 1.7V RP16Q72D R 1.7V RP16Q82B Q 2.8V RP16Q82D R 2.8V RP16Q92B Q 3.9V RP16Q92D R 3.9V RP16Q12B Q 4 1.V RP16Q12D R 4 1.V RP16Q112B Q 5 1.1V RP16Q112D R 5 1.1V RP16Q122B Q 6 1.2V RP16Q122D R 6 1.2V RP16Q132B Q 7 1.3V RP16Q132D R 7 1.3V RP16Q142B Q 8 1.4V RP16Q142D R 8 1.4V RP16Q152B Q 9 1.5V RP16Q152D R 9 1.5V RP16Q162B Q 1 1.6V RP16Q162D R 1 1.6V RP16Q172B Q V RP16Q172D R V RP16Q182B Q V RP16Q182D R V RP16Q122B5 Q V RP16Q122D5 R V RP16Q182B5 Q V RP16Q182D5 R V 17

18 Power Dissipation (SOT-23-5) Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: (Power Dissipation (SOT-23-5) is substitution of SOT-23-6.) Measurement Conditions Standard Test Land Pattern Environment Mounting on Board (Wind velocity=m/s) Board Material Glass cloth epoxy plastic (Double sided) Board Dimensions 4mm 4mm 1.6mm Copper Ratio Top side: Approx. 5%, Back side: Approx. 5% Through-holes.5mm 44pcs Measurement Result Standard Land Pattern (Ta=25 C, Tjmax=125 C) Free Air Power Dissipation 42mW 25mW Thermal Resistance θja=( C)/.42W=238 C/W 4 C/W 6 4 Power Dissipation PD (mw) On Board Free Air Ambient Temperature ( C) Power Dissipation Measurement Board Pattern IC Mount Area (Unit: mm) 18

19 Package Dimensions (SOT-23-5) 2.9±.2 1.9±.2 (.95) (.95) 1.1±.1.8± ±.3 ~.1.2min ± Unit : mm Mark Specification (SOT-23-5) : Product Code... Refer to the marking list table : Lot No... Alphanumeric serial number

20 RP16N Series marking list table (SOT-23-5) RP16NxxxB RP16NxxxD Product Name 123 VSET Product Name 123 VSET RP16N71B C A A.7V RP16N71D C B A.7V RP16N81B C A B.8V RP16N81D C B B.8V RP16N91B C A C.9V RP16N91D C B C.9V RP16N11B C A D 1.V RP16N11D C B D 1.V RP16N111B C A E 1.1V RP16N111D C B E 1.1V RP16N121B C A F 1.2V RP16N121D C B F 1.2V RP16N131B C A G 1.3V RP16N131D C B G 1.3V RP16N141B C A H 1.4V RP16N141D C B H 1.4V RP16N151B C A J 1.5V RP16N151D C B J 1.5V RP16N161B C A K 1.6V RP16N161D C B K 1.6V RP16N171B C A L 1.7V RP16N171D C B L 1.7V RP16N181B C A M 1.8V RP16N181D C B M 1.8V RP16N121B5 C A P 1.25V RP16N121D5 C B P 1.25V RP16N181B5 C A Q 1.85V RP16N181D5 C B Q 1.85V 2

21 TEST CIRCUITS VDD VOUT C1 Series C2 V VOUT IOUT CE Control CE GND Basic Test Circuit C1=Ceramic 1. F C2=Ceramic 1. F VDD VOUT VOUT A ISS C1 Series C2 CE Control CE GND C1=Ceramic 1. F C2=Ceramic 1. F Supply Current Test Circuit Pulse Generator VDD VOUT P.G. Series C2 IOUT CE Control CE GND Ripple Rejection Test Circuit C2=Ceramic 1. F VDD VOUT VOUT C1 Series C2 CE Control CE GND IOUTa IOUTb C1=Ceramic 1. F C2=Ceramic 1. F Load Transient Response Test Circuit 21

22 TYPICAL CHARACTERISTICS 1) vs. Output Current (Topt 25 C) VOUT (V) xx.3 VIN=3.6V.2 VIN=2.8V.1 VIN=1.7V VIN=1.1V Output Current IOUT (ma) VOUT (V) xx.6.4 VIN=3.6V VIN=2.8V.2 VIN=2.2V VIN=1.5V Output Current IOUT (ma) VOUT (V) 18xx VIN=3.6V VIN=2.8V.2 VIN=2.1V Output Current IOUT (ma) 2) vs. Input Voltage (Topt 25 C) VOUT (V) 7xx IOUT=1mA IOUT=3mA IOUT=5mA Input Voltage VIN (V) VOUT (V) 12xx IOUT=1mA.6 IOUT=3mA.4 IOUT=5mA Input Voltage VIN (V) 22

23 VOUT (V) 18xx IOUT=1mA.8 IOUT=3mA.6 IOUT=5mA Input Voltage VIN (V) 3) Supply Current vs. Input Voltage (Topt 25 C) 6 7xx 6 12xx Supply Current ISS (μa) Supply Current ISS (μa) Input Voltage VIN (V) Input Voltage VIN (V) 18xx Supply Current ISS (μa) Input Voltage VIN (V) 23

24 4) vs. Temperature 7xx VOUT (V) VOUT (V) xx Temperature Topt ( C) Temperature Topt ( C) 18xx VOUT (V) Temperature Topt ( C) 5) Supply Current vs. Temperature 7xx xx Supply Current ISS (μa) Temperature Topt ( C) Supply Current ISS (μa) Temperature Topt ( C) 24

25 18xx 6 Supply Current ISS (μa) Temperature Topt ( C) 6) Dropout Voltage vs. Output Current Dropout Voltage VDIF (mv) xx Topt=85 C Topt=25 C Topt=- 4 C Dropout Voltage VDIF (mv) xx Topt=85 C Topt=25 C Topt=- 4 C Output Current IOUT (ma) Output Current IOUT (ma) 18xx Dropout Voltage VDIF (mv) Topt=85 C Topt=25 C Topt=- 4 C Output Current IOUT (ma) 25

26 7) Dropout Voltage vs Set (Topt 25 C) Dropout Voltage VDIF (mv) IOUT=4mA IOUT=3mA IOUT=2mA IOUT=15mA IOUT=5mA IOUT=3mA IOUT=1mA Set VREG (V) 8) Minimum Operating Voltage 7xx Input Voltage VIN (V) Output Current IOUT (ma) Hatched area is avaiable for.7v output 9) Ripple Rejection vs. Input Bias Voltage (C1 none, C2 1. F, Ripple.2Vp-p, Topt 25 C) 7xx 7xx Ripple Rejection RR (db) IOUT=1mA f=.1khz f=1khz f=1khz f=1khz Input Voltage VIN (V) Ripple Rejection RR (db) IOUT=3mA f=.1khz f=1khz f=1khz f=1khz Input Voltage VIN (V) 26

27 Ripple Rejection RR (db) xx IOUT=1mA f=.1khz f=1khz f=1khz f=1khz Input Voltage VIN (V) Ripple Rejection RR (db) xx IOUT=3mA f=.1khz f=1khz f=1khz f=1khz Input Voltage VIN (V) 1) Ripple Rejection vs. Frequency (C1 none, C2 1. F, Ripple.1Vp-p, Topt 25 C) 7xx 12xx 8 VIN=1.7V 8 VIN=2.2V Ripple Rejection RR (db) IOUT=1mA IOUT=3mA IOUT=15mA Frequency f (khz) Ripple Rejection RR (db) IOUT=1mA IOUT=3mA IOUT=15mA Frequency f (khz) 18xx 8 VIN=2.8V Ripple Rejection RR (db) IOUT=1mA IOUT=3mA IOUT=15mA Frequency f (khz) 27

28 11) Input Transient Response (C1 none, C2 1. F, IOUT 3mA, tr tf 5 s, Topt 25 C) 7xx 12xx 4 4 VOUT (V) 3 2 Input Voltage Input Voltage VIN (V) VOUT (V) 3 Input Voltage Input Voltage VIN (V) 18xx 5 VOUT (V) Input Voltage Input Voltage VIN (V) ) Load Transient Response (C1 C2 1. F, tr tf 5 s, Topt 25 C) 7xx 7xx VOUT (V).8.7 Output Current 5mA 1mA 1 5 Output Current IOUT (ma) VOUT (V).8.7 Output Current 1mA 15mA Output Current IOUT (ma)

29 12xx 12xx VOUT (V) Output Current 5mA 1mA 1 5 Output Current IOUT (ma) VOUT (V) Output Current 1mA 15mA Output Current IOUT (ma) xx 18xx VOUT (V) Output Current 5mA 1mA 1 5 Output Current IOUT (ma) VOUT (V) Output Current 1mA 15mA Output Current IOUT (ma) ) Turn On Speed with CE pin (C1 C2 1. F, Topt 25 C) 7xx 12xx VIN=1.7V 2 VIN=2.2V 4 VOUT (V) CE Input Voltage IOUT=mA IOUT=3mA IOUT=4mA 1 CE Input Voltage VCE (V) VOUT (V) CE Input Voltage IOUT=mA IOUT=3mA IOUT=4mA 2 CE Input Voltage VCE (V)

30 18xx VIN=2.8V 4 VOUT (V) CE Input Voltage IOUT=mA IOUT=3mA IOUT=4mA 2 CE Input Voltage VCE (V) ) Turn Off Speed with CE pin (C1 C2 1. F, Topt 25 C) 7xx 12xx VIN=1.7V 2 VIN=2.2V 4 VOUT (V) CE Input Voltage IOUT=mA IOUT=3mA IOUT=4mA 1 CE Input Voltage VCE (V) VOUT (V) CE Input Voltage IOUT=mA IOUT=3mA IOUT=4mA 2 CE Input Voltage VCE (V) xx VIN=2.8V 4 VOUT (V) CE Input Voltage IOUT=mA IOUT=3mA IOUT=4mA 2 CE Input Voltage VCE (V)

31 15) Inrush Current at Start up (C1 1. F, Topt 25 C) CE Input Voltage VCE (V) VOUT (V) xx VIN=1.7V COUT=1.μF CE Input Voltage Inrush Current Inrush Current (ma) CE Input Voltage VCE (V) VOUT (V) xx VIN=1.7V COUT=1μF CE Input Voltage Inrush Current Inrush Current (ma) 7xx 12xx CE Input Voltage VCE (V) VOUT (V) VIN=1.7V COUT=22μF CE Input Voltage Inrush Current Inrush Current (ma) CE Input Voltage VCE (V) VOUT (V) VIN=2.2V COUT=1.μF CE Input Voltage Inrush Current Inrush Current (ma) CE Input Voltage VCE (V) VOUT (V) xx VIN=2.2V COUT=1μF CE Input Voltage Inrush Current Inrush Current (ma) CE Input Voltage VCE (V) VOUT (V) xx VIN=2.2V COUT=22μF 5 45 CE Input Voltage Inrush Current 1 5 Inrush Current (ma)

32 3. 18xx VIN=2.8V COUT=1.μF 3. 18xx VIN=2.8V COUT=1μF CE Input Voltage VCE (V) VOUT (V) CE Input Voltage Inrush Current Inrush Current (ma) CE Input Voltage VCE (V) VOUT (V) CE Input Voltage Inrush Current Inrush Current (ma) CE Input Voltage VCE (V) VOUT (V) xx VIN=2.8V COUT=22μF CE Input Voltage Inrush Current Inrush Current (ma)

33 ESR vs. Output Current When using these ICs, consider the following points: The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions when the white noise level is under 4 V (Avg.) are marked as the hatched area in the graph. Measurement conditions Frequency Band: 1Hz to 3MHz Temperature : 4 C to 85 C C1, C2 : 1. F MURATA GRM155B31A15KE15 If other than ceramic capacitors such as tantalum, the ESR of the capacitor might be higher than expected. This graph shows the stable area with ESR limit. In the actual evaluation, we used Murata GRM155B31A15KE15, therefore, bias characteristics of the same kind of ceramic capacitors are considered. 7xx 18xx 1 VIN=1.V to 3.6V 1 VIN=1.9V to 3.6V 1 1 ESR (Ω) 1 1 Topt=85 C Topt=-4 C ESR (Ω) 1 1 Topt=85 C Topt=-4 C Output Current IOUT (ma) Output Current IOUT (ma) 33

34 Halogen Free Ricoh is committed to reducing the environmental loading materials in electrical devices with a view to contributing to the protection of human health and the environment. Ricoh has been providing RoHS compliant products since April 1, 26 and Halogen-free products since April 1,

35 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Ricoh Electronics: RP16K11D-TR RP16K121D-TR RP16Z121D5-TR-F RP16Z121D8-TR-F RP16Q12D-TR-FE RP16Z121D- TR-F RP16N81B-TR-FE RP16N81D-TR-FE RP16K71D5-TR RP16K71D-TR RP16K81D-TR RP16K11B5-TR RP16Z111D-TR-F RP16Z121B-TR-F RP16Z131D-TR-F RP16Z151D-TR-F RP16Z171D5- TR-F RP16Z181D-TR-F RP16Q92D-TR-FE RP16Q12B-TR-FE RP16Q122D-TR-FE RP16Z71D-TR-F RP16Z11D-TR-F RP16Z111D5-TR-F RP16K211B-TR RP16K271B-TR RP16N11D-TR-FE RP16N111B- TR-FE RP16N111D-TR-FE RP16N121B-TR-FE RP16K111D-TR RP16K121B5-TR RP16K121B-TR RP16K151D-TR RP16K171D5-TR RP16K181B-TR