RICOH RP106x Series 400mA 1V Input LDO Data Sheet Owner's Manual
Summary
The RP106x series is a high-performance CMOS Low Dropout Regulator (LDO) designed for stable power generation up to 400mA with adjustable output voltages between 0.7V and 1.8V. Ideal for powering battery-operated, hand-held communication devices, and various consumer electronics where efficiency and low dropout voltage are critical features. This manual provides comprehensive details on technical specifications, multiple package options (WLCSP, DFN), detailed application guides, and reliability data necessary for electrical designers building commercial electronic systems.
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RP106x Series 400m A 1V Input LDO
The RP106x Series are CMOS-based LDO regulators featuring 400m A output. The input voltage as low as Min. 1.0V and the output voltage can be set from 0.7V. The output voltage accuracy has been improved to ± 0.8% and due to a built-in transistor with low on-resistance of 0.55Ω (at VOUT=1.5V), RP106x provides a low dropout voltage. The CE pin can switch the regulator to standby mode. In addition to SOT-23-5 and SC-88A packages, a 0.69mm square WLCSP-4-P5 package and a 1.2mm square DFN(PLP)1212-6 package are also available.
FEATURES • Supply Current (ISS) ························Typ. 48μA (VIN=SET VOUT+1.0V) • Temp. coeff. of Output Voltage······· Typ. ± 60ppm/°C • Standby Current (Istandby) ·················Typ. 0.1μA (Same as above, CE="L") • Line Regulation ······························ Typ. 0.10%/V • Dropout Voltage (VDIF) ····················Typ. 0.22V (IOUT=400m A, VOUT=1.5V) • Fold-back Protection Circuit ··········· Current limit Typ. 110m A • Ripple Rejection (RR)·····················Typ. 60d B (f=10k Hz) • Constant Slope Circuit • Input Voltage Range (VIN) ···············1.0V to 3.6V • Auto-Discharge function················· D Version • Output Voltage Range (VOUT)··········0.7V to 1.8V (internally fixed) • Packages ······································· WLCSP-4-P5, DFN(PLP)1212-6, • Output Voltage Accuracy ················± 0.8% SC-88A, SOT-23-5
• Ceramic capacitors can be used···· 1μF or more
(The above shows specification at Topt=25°C. Design assurance value at -40°C ≤ Topt ≤ 85°C is also available. For details, please refer to the datasheet.)
BLOCK DIAGRAMS RP106xxxx B RP106xxxx D (Without Auto-Discharge function) (With Auto-Discharge function)
ro po ut ol ta ge IF (m
VDD VOUT VDD VOUT
Vref Vref
Current Limit Current Limit
CE GND CE GND
SELECTION GUIDES
.xx. : Specify the output voltage within the range of 0.7V (.07.) to 1.8V (.18.)
Halogen Free Package Q'ty per Reel Part No.
in 0.1V steps.
WLCSP-4-P5 5,000 pcs RP106Z.xx.1.∗ -TR-F
.∗ : Select from (.B.) without auto-discharge function or
DFN(PLP)1212-6 5,000 pcs RP106K.xx.1.∗ -TR
(.D.) with auto-discharge function.
SC-88A 3,000 pcs RP106Q.xx.2.∗ -TR-FE SOT-23-5 3,000 pcs RP106N.xx.1.∗ -TR-FE
PACKAGES (Top View) TYPICAL CHARACTERISTIC
WLCSP-4-P5 DFN(PLP)1212-6 SC-88A SOT-23-5 RP106x12xx Dropout Voltage vs. Output Current
Topt=85°C Topt=25°C Topt=-40°C
1 VDD 1 NC 1 CE 1 VDD 2 CE 2 GND 2 NC 2 GND 3 GND 3 CE 3 GND 3 CE 4 VOUT 4 VDD 4 VOUT 4 NC
5 NC 5 VDD 5 VOUT 6 VOUT
Output Current IOUT(m A)
APPLICATIONS • Power source for hand-held communication equipment, camera and VCRs • Power source for battery-powered equipment • Power source for home appliances and digital home appliances
No.EK-180-110221 400m A CMOS LDO Regulator
Page Summary Contents For RICOH RP106x Series 400mA 1V Input LDO Data Sheet Owner's Manual
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 2 |
| File Size | 271.16 KB |
| Published | June 04, 2026 |
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Frequently Asked Questions
What is the acceptable input voltage range for the RP106x series?
The input voltage range (VIN) is specified as 1.0V to 3.6V.
How do I place the regulator into a low-power standby mode?
The CE pin can be used to switch the regulator into standby mode.
Is this device suitable for extremely high reliability applications (e.g., medical)?
No; customers planning use in highly specialized critical applications must contact Ricoh first.
What is the minimum required value and type of capacitor?
Ceramic capacitors, 1μF or more, can be used.