RICOH RP101x Series Low Noise 0.6% Accuracy 300mA LDO User Manual and Data Sheet
Summary
The RP101x Series is a high-precision CMOS LDO regulator designed for reliable, low-noise power management up to 300mA. Featuring ultra-low quiescent supply currents (down to 18μA), excellent line transient response, and a precise ±0.6% output accuracy, it minimizes power consumption in demanding applications. This manual provides comprehensive technical specifications, including package details and comparisons, making it essential for electrical engineers developing portable electronics like battery-powered devices, cameras, and home appliances requiring stable, efficient DC voltage regulation.
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RP101x Series
Low Noise 0.6% Accuracy 300m A LDO
The RP101x Series are CMOS-based LDO regulators featuring 300m A output. RP101x has the supply current as low as 18μA, which is far lower than current products. Due to a built-in transistor with low on-resistance of 0.87Ω (at VOUT=2.8V) , RP101x provides a low dropout voltage. RP101x also has an excellent line transient response, 75d B ripple rejection, and low noise. The output voltage accuracy has been improved to ± 0.6% and the temparature drift coefficient of the output voltage is as low as ± 30ppm/°C
FEATURES • Supply Current (ISS) ························Typ. 18μA (VIN=SET VOUT+1.0V) • Line Regulation ······························· Typ. 0.02%/V • Standby Current (Istandby) ·················Typ. 0.1μA (Same as above, CE="L") • Fold-back Protection Circuit············Current limit Typ. 40m A • Dropout Voltage (VDIF) ····················Typ. 0.13V (IOUT=150m A, VOUT=2.8V) • Auto-Discharge function ······················D Version • Ripple Rejection (RR)·····················Typ. 75d B (f=1k Hz) • Packages ········································DFN(PLP)1612-4, • Input Voltage Range (VIN) ···············1.7V to 5.25V DFN(PLP)1612-4B, • Output Voltage Range (VOUT)··········1.2V to 3.3V (internally fixed) SOT-23-5 • Output Voltage Accuracy·················± 0.6% • Ceramic capacitors can be used. ···1μF or more • Temp. coeff. of Output Voltage ·······Typ. ± 30ppm/°C
BLOCK DIAGRAMS RP101xxxx B RP101xxxx D (Without Auto-Discharge function) (With Auto-Discharge function)
VDD VOUT VDD VOUT
ro lt IF
Vref Vref
Current Limit Current Limit
CE GND CE GND
SELECTION GUIDES
.xx. : Specify the output voltage within the range of 1.2V (.12.) to 3.3V (.33.)
Halogen Free Package Q'ty per Reel Part No.
in 0.1V steps
DFN(PLP)1612-4 5,000 pcs RP101K.xx.1.∗ -TR
.∗ : Select from (.B.) without auto-discharge function or
DFN(PLP)1612-4B 5,000 pcs RP101K.xx.2.∗ -TR
(.D.) with auto-discharge function.
SOT-23-5 3,000 pcs RP101N.xx.1.∗ -TR-FE
PACKAGES (Top View) TYPICAL CHARACTERISTIC
DFN(PLP)1612-4 DFN(PLP)1612-4B SOT-23-5 RP101x28xx Dropout Voltage vs. Output Current
t=0.6mm Max. t=0.4mm Max.
1 VOUT 1 VOUT 1 VDD 2 GND 2 GND 2 GND 3 CE 3 CE 3 CE 4 VDD 4 VDD 4 NC
5 VOUT
∗) The tab is substrate level (GND).
Output Current IOUT (m A)
APPLICATIONS • Power source for hand-held communication equipment, cameras, and VCRs • Power source for battery-powered equipment • Power source for home appliances
No.EK-167-101001 CMOS LDO Regulator
Page Summary Contents For RICOH RP101x Series Low Noise 0.6% Accuracy 300mA LDO User Manual and Data Sheet
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 2 |
| File Size | 309.55 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What is the optimal capacitor for using with the RP101x Regulator?
Ceramic capacitors, 1μF or larger, can be used.
What is the typical supply current of the RP101x Series under low power mode?
The Standby Current (Istandby) is typically 0.1μA.
How does the RP101x Series handle transient voltage changes?
It offers excellent line transient response, and its Dropout Voltage (VDIF) is typ. 0.13V at IOUT=150mA, VOUT=2.8V.
What are the available packages for the RP101x Series?
Available packages include DFN(PLP)1612-4, DFN(PLP)1612-4B, and SOT-23-5.