RP112x SERIES. Low Noise 150mA LDO REGULATOR OUTLINE FEATURES APPLICATIONS NO.EA

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1 SERIES Low Noise 5mA LDO REGULATOR NO.EA-58-3 OUTLINE The RPx Series are CMOS-based voltage regulator (LDO) ICs, which have been developed using the CMOS process technology, with high output voltage accuracy, low-supply current, low On-resistance transistor, low noise output voltage and high ripple rejection. Each of the ICs is composed of the followings: a voltage reference unit, an error amplifier, a resistor-net for output voltage setting, a current limit circuit, and a chip enable circuit. The RPx features ultra low noise and its Ripple Rejection is as low as 8dB at f=khz, 75dB at f=khz and 65dB at f=khz. The Output Noise is also as low as Typ. μvrms. It is kept the low level at any Output Voltage. RPx is suitable for the power source for the portable music player and RF module that demands for higher level of noise reduction. SOT-3-5 and SC-88A packages, a mm square DFN(PLP)- package are available. FEATURES Supply Current...Typ. 75μA Standby Current...Typ..μA Dropout Voltage...Typ..V (IOUT=5mA, VOUT=.8V) Ripple Rejection...Typ. 8dB (f=khz) Typ. 75dB (f=khz) Typ. 65dB (f=khz) Accuracy...±.% Temperature Coefficient...Typ. ±3ppm/ C Line Regulation...Typ..%/V Packages...DFN(PLP)-, SC-88A, SOT-3-5 Input Voltage Range...V to 5.5V Range...V to.v (.V steps) (For other voltages, please refer to MARK INFORMATIONS.) Short Current Limit...Typ. ma Built-in Foldback Protection Circuit Output Noise...Typ. μvrms Ceramic capacitors are recommended to be used with this IC...μF 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 equipments. Power source for electrical home appliances. Power source for the portable music player Power source for RF module

2 BLOCK DIAGRAMS RPxxxxB RPxxxxD VDD VOUT VDD VOUT Noise Reduction Noise Reduction CE Vref Current Limit GND CE Vref Current Limit GND SELECTION GUIDE The output voltage, auto discharge function, package for the ICs can be selected at the user s request. Product Name Package Quantity per Reel Pb Free Halogen Free RPKxx -TR DFN(PLP)-, pcs Yes Yes RPQxx -TR-FE SC-88A 3, pcs Yes Yes RPNxx -TR-FE SOT-3-5 3, pcs Yes Yes xx : The output voltage can be designated in the range of.v()to.v()in.v steps. (For other voltages, please refer to MARK INFORMATIONS.) : Auto discharge function at off state are options as follows. (B) "H" active, without auto discharge function at off state (D) "H" active, with auto discharge function at off state

3 PIN CONFIGURATIONS DFN(PLP)- SC-88A SOT-3-5 Top View 3 Bottom View (mark side) (mark side) 3 3 PIN DESCRIPTIONS DFN(PLP)- Pin No. Symbol Description VOUT Output Pin GND Ground Pin 3 CE Chip Enable Pin ("H" Active) VDD Input Pin ) Tab is GND level. (They are connected to the reverse side of this IC.) The tab is better to be connected to the GND, but leaving it open is also acceptable. SC-88A SOT-3-5 Pin No Symbol Pin Description VDD Input Pin GND Ground Pin 3 CE Chip Enable Pin ("H" Active) NC No Connection 5 VOUT Output Pin Pin No Symbol Pin Description VDD Input Pin GND Ground Pin 3 CE Chip Enable Pin ("H" Active) NC No Connection 5 VOUT Output Pin 3

4 ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN Input Voltage 6. V V (CE Pin) 6. V VOUT.3 to VIN +.3 V IOUT Output Current 8 ma PD Power Dissipation (DFN(PLP)-) Power Dissipation (SC-88A) 38 Power Dissipation (SOT-3-5) Topt Operating Temperature Range to 85 C Tstg Storage Temperature Range 55 to 5 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

5 ELECTRICAL CHARACTERISTICS RPx Unless otherwise noted,vin=set VOUT +.V(VOUT >.5), VIN=.5V(VOUT.5V), IOUT=mA, CIN=COUT=.μF. The values in are applicable under the condition of C Topt 85 C. RPxxxxB/D Topt=5 C Symbol Item Conditions Min. Typ. Max. Unit VOUT Topt=5 C VOUT.V.99. V VOUT <.V mv VOUT.V V - C Topt 85 C VOUT <.V 3 3 mv IOUT Output Current 5 ma ΔVOUT/ΔIOUT Load Regulation ma IOUT 5mA - mv VDIF Dropout Voltage Please refer to Dropout Voltage. ISS Supply Current IOUT=mA 75 μa Istandby Standby Current VCE=V.. μa ΔVOUT/ΔVIN RR Line Regulation Ripple Rejection Set VOUT+.5V VIN 5.V VOUT.7V.V <VIN < 5.V VOUT <.7V Ripple.Vp-p, VIN=Set VOUT+.V, IOUT=3mA f =khz 8 f =khz 75 f =khz 65.. %/V VIN Input Voltage. 5.5 V ΔVOUT/ΔTopt Temperature Coefficient C Topt 85 C ±3 ISC Short Current Limit VOUT=V ma IPD CE Pull-down Current.3.6 μa VCEH "H". V VCEL "L". V en RLOW Output Noise Auto-discharge Nch Tr. ON Resistance (D version) BW=Hz~kHz IOUT=3mA db ppm / C μvrms VIN=.V, VCE=V 6 Ω The values in have been tested and guaranteed by Design Engineering. All test categories were tested on the products under the pulse load condition (Tj Topt=5 C) except for Output Voltage Temperature Coefficient,Output Noise and Ripple Rejection. ) When Input Voltage is 5.5V, the total operational time must be within 5hrs. 5

6 Dropout Voltage Dropout Voltage VDIF (V) VOUT (V) Condition Typ. Max. Topt=5 C.V VOUT <.3V V VOUT <.V.37.7.V VOUT <.5V.3.6.5V VOUT <.7V.3.5 IOUT=5mA.7V VOUT <.V.9..V VOUT <.5V V VOUT <.8V..3.8V VOUT <.V..8 The values in have been tested and guaranteed by Design Engineering 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 APPLICATIONS VDD VOUT VOUT C RPx Series C CE GND External Parts Example: C, C: Ceramic Capacitor.µF, Murata, GRM55B3A5KE5 TECHNICAL NOTES 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.μf or more capacitor C. In case of using a tantalum capacitor, the output may be unstable due to inappropriate ESR. Therefore, the full range of operating conditions for the capacitor in the application should be considered. PCB Layout The high impedances of VDD and GND could be a reason for the noise pickup and unstable operation. Therefore, it is imperative that the impedances of VDD and GND be the lowest possible. Also, place a.µf or more capacitor (C) between VDD pin and GND pin as close as possible to each other. As for C output capacitor that is used for phase compensation, place it between VOUT pin and GND as close as possible to each other (Refer to TYPICAL APPLICATIONS). 7

8 TEST CIRCUIT VDD VOUT C RPx Series V C VOUT IOUT CE GND Basic Test Circuit C=Ceramic.μF C=Ceramic.μF VDD VOUT VOUT A ISS C RPx Series C CE GND C=Ceramic.μF C=Ceramic.μF Test Circuit for Supply Current Pulse Generator VDD VOUT P.G. RPx Series C IOUT CE GND C=Ceramic.μF Test Circuit for Ripple Rejection VDD VOUT VOUT C RPx Series C CE GND IOUTa IOUTb Test Circuit for Load Transient Response C=Ceramic.μF C=Ceramic.μF 8

9 Typical Characterics ) vs. Output Current (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) VIN=.V VIN=3.V VIN=.V VIN=5.5V VIN=3.V VIN=.V VIN=.8V VIN=5.5V RPxxx VIN=.3V VIN=.5V VIN=.8V VIN=5.5V ) vs. Input Voltage (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) IOUT=mA IOUT=3mA IOUT=5mA IOUT=mA IOUT=3mA IOUT=5mA

10 RPxxx IOUT=mA. IOUT=3mA.5 IOUT=5mA ) Supply Currnet vs. Input Voltage (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) Supply Current ISS (µa) Supply Current ISS (µa) RPxxx Supply Current ISS (µa)

11 ) vs.temperature (C=Ceramic.μF, C=Ceramic.μF, IOUT=mA) VIN=.V Temperature Topt ( C) Temperature Topt ( C) RPxxx VIN=5.V Temperature Topt ( C) 5) Supply Current vs.temperature (C=Ceramic.μF, C=Ceramic.μF,IOUT=mA) 8 VIN=.V Supply Current ISS (µa) Supply Current ISS (µa) Temperature Topt ( C) Temperature Topt ( C)

12 RPxxx 8 VIN=5.V Supply Current ISS (µa) Temperature Topt ( C) 6) Droplut Voltage vs.output Current (C=Ceramic.μF, C=Ceramic.μF) Dropout Voltage VDIF (mv) C 5 C - C 5 5 Dropout Voltage VDIF (mv) C 5 C - C 5 5 RPxxx 5 Dropout Voltage VDIF (mv) C 5 C - C 5 5

13 7) Dropout Voltage vs. Set (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) Dropout Voltage VDIF (mv) mA 5mA 3mA ma Set VREG (V) 8) Dropout Voltage vs. Temperature (C=Ceramic.μF, C=Ceramic.μF) Dropout Voltage VDIF (mv) mA ma 5mA Temperature Topt ( C) Dropout Voltage VDIF (mv) mA ma 5mA Temperature Topt ( C) RPxxx Dropout Voltage VDIF (mv) mA ma 5mA Temperature Topt ( C) 3

14 9) Ripple Rejection vs. Input Voltage (C=none, C=Ceramic.μF, Ripple=.Vp-p, Topt=5 C) IOUT=mA f=hz f=khz f=khz f=khz IOUT=3mA f=hz f=khz f=khz f=khz IOUT=mA f=hz f=khz f=khz f=khz IOUT=3mA f=hz f=khz f=khz f=khz RPxxx IOUT=mA f=hz f=khz f=khz f=khz RPxxx IOUT=3mA f=hz f=khz f=khz f=khz

15 ) Ripple Rejection vs. Output Current (C=none, C=Ceramic.μF, Ripple=.Vp-p, Topt=5 C) RPx VIN=.V f=hz f=khz f=khz f=khz f=hz f=khz f=khz f=khz RPxxx VIN=5.V f=hz f=khz f=khz f=khz 5 5 ) Ropple Rejection vs. Frequency (C=none, C=Ceramic.μF, Ripple=.Vp-p, Topt=5 C) ma 3mA 5mA ma 5mA VIN=.V. Frequency f (khz) ma 3mA 5mA ma 5mA. Frequency f (khz) 5

16 RPxxx ma 3mA 5mA ma 5mA VIN=5.V. Frequency f (khz) ) Output Spectral Noise Density vs.frequancy (C=none, C=Ceramic.μF, Topt=5 C) Output Spectral Noise Density µv/ Hz(V) VIN=.V 5mA 3mA Output Spectral Noise Density µv/ Hz(V) mA 3mA.... Frequency f (khz) Frequency f (khz) RPxxx Output Spectral Noise Density µv/ Hz(V) VIN=5.V 5mA 3mA.. Frequency f (khz) 6

17 3) Input Transient Response (C=none, C=Ceramic.μF, IOUT=3mA, tr=tf=5.μs, Topt=5 C) Input Voltage.5.V 3.V Input Voltage 3.8V.8V RPxxx Input Voltage..5V 5.5V ) Load Transient Response (C=Ceramic.μF,C=Ceramic.μF, tr=tf=.5μs,topt=5 C) VIN=.V 5 VIN=.V Output Current 5mA ma Output Current ma 5mA

18 Output Current 5mA ma Output Current ma 5mA RPxxx RPxxx VIN=5.V 5 VIN=5.V Output Current 5mA ma Output Current ma 5mA ) Turn on Speed with CE pin (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) VIN=.V V.V.8 IOUT=mA. IOUT=3mA. IOUT=5mA VCE (V) V 3.8V IOUT=mA IOUT=3mA IOUT=5mA VCE (V) 8

19 RPxxx VIN=5.V V 5.V IOUT=mA IOUT=3mA IOUT=5mA VCE (V) 6) Turn off Speed with CE pin (B Version) (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) VIN=.V V V IOUT=mA IOUT=3mA IOUT=5mA Time t (s) VCE (V) V V IOUT=mA IOUT=3mA IOUT=5mA 8 6 Time t (s) VCE (V) RPxxB VIN=5.V V V IOUT=mA IOUT=3mA IOUT=5mA 8 6 Time t (s) VCE (V) 7) Turn off Speed with CE pin (D Version) (C=Ceramic.μF, C=Ceramic.μF, Topt=5 C) 9

20 RPxxD RPx8xD VIN=.V V V IOUT=mA IOUT=3mA IOUT=5mA VCE (V) V V IOUT=mA IOUT=3mA IOUT=5mA 6 8 VCE (V) RPxxD VIN=5.V V V IOUT=mA IOUT=3mA IOUT=5mA VCE (V) 6 8

21 8) Inrush Current (C=Ceramic.μF, IOUT=mA, Topt=5 C). VIN=.V...6 V.V V 3.8V..8. CE C=.µF C=.5µF C=.µF C=3.3µF 3 Inrush Current Irush (ma)...7 CE C=.µF C=.5µF C=.µF 3 Inrush Current Irush (ma) Inrush Current Inrush Current RPxxx 6 VIN=5.V 5 V 5.V 3 CE C=.µF C=.5µF C=.µF 3 Inrush Current Irush (ma) Inrush Current

22 ESR vs.ooutput 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 μv (Avg.) are marked as the hatched area in the graph. Measurement Conditions Frequency Band : Hz to MHz Temperature : C to 85 C Hatched Area : Noise level is under μv(avg.) C,C :.μf or more VIN=.V to 5.5V VIN=.8V to 5.5V ESR (Ω) ESR (Ω) RPxxx VIN=.V to 5.5V ESR (Ω)

23 Ricoh presented with the Japan Management Quality Award for 999. Ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society. Ricoh awarded ISO certification. The Ricoh Group was awarded ISO certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. Our current aim is to obtain ISO certification for all of our business offices. Ricoh completed the organization of the Lead-free production for all of our products. After Apr., 6, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.