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RICOH RP106x SERIES 0.8% ACCURACY 0.7V OUTPUT 400mA LDO REGULATOR Data Manual User Guide

Summary

High-performance Low Dropout (LDO) Voltage Regulator designed for powering demanding portable electronics and battery-operated devices. This advanced regulator delivers precise, adjustable output voltages ranging from 0.7V to 1.8V, operating efficiently on input voltages as low as 1.0V. The accompanying technical documentation provides engineers with comprehensive details, including electrical specifications, absolute maximum ratings, multiple miniature package options (WLCSP-4-P5), and precise pin configurations for seamless integration into next-generation IoT and communication equipment designs.

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RP106x SERIES

0.8%ACCURACY 0.7V OUTPUT 400m A LDO REGULATOR

NO.EA-180-111020

OUTLINE The RP106x Series are low voltage 400m A voltage regulator. These ICs had been further improved of low-voltage capability compared with previous low-voltage product. The input voltage is 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). 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 0.69mm square WLCSP-4-P5 package and a 1.2mm square DFN(PLP)1212-6 are also available.

FEATURES • Supply Current ......................................................Typ. 48μA • Standby Current ....................................................Typ. 0.1μA • Ripple Rejection....................................................Typ. 60d B (f=10k Hz) • Input Voltage Range .............................................1.0V to 3.6V • Output Voltage Range...........................................0.7V to 1.8V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Output Voltage Accuracy.......................................±0.8% (VOUT≥1.0V, Topt=25°C) • Temperature-Drift Coefficient of Output Voltage ...Typ. ±60ppm/°C • Dropout Voltage ....................................................Typ. 0.22V (VOUT=1.5V) • Line Regulation .....................................................Typ. 0.10%/V • Packages ..............................................................WLCSP-4-P5, DFN(PLP)1212-6, SC-88A, SOT-23-5 • Built-in Fold Back Protection Circuit .....................Typ. 110m A (Current at short mode) • Built-in Constant Slope Circuit • Ceramic capacitors are recommended to be used with this IC .....1.0μF 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.

Page Summary Contents For RICOH RP106x SERIES 0.8% ACCURACY 0.7V OUTPUT 400mA LDO REGULATOR Data Manual User Guide

Page 1 RP106x SERIES 0.8%ACCURACY 0.7V OUTPUT 400m A LDO REGULATOR NO.EA-180-111020 OUTLINE The RP106x Series are low voltage 400m A voltage regulator. These ICs had been further improved of low-voltage capa...
Page 2 RP106x BLOCK DIAGRAMS RP106xxxx B RP106xxxx D VDD VOUT VDD VOUT Vref Vref Current Limit Current Limit CE GND CE GND SELECTION GUIDE The output voltage, auto discharge function, package, and the taping...
Page 3 RP106x PIN CONFIGURATIONS • WLCSP-4-P5 • DFN(PLP)1212-6 Top View Bottom View Silicon Side Bump Side • SC-88A • SOT-23-5 5 4 (mark side) (mark side) PIN DESCRIPTIONS • WLCSP-4-P5 • DFN(PLP)1212-6 Pin N...
Page 4 RP106x ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN Input Voltage 4.0 V VCE Input Voltage (CE Pin) −0.3 to 4.0 V VOUT Output Voltage −0.3 to VIN+0.3 V IOUT Output Current 500 m A Power Dissipa...
Page 5 RP106x ELECTRICAL CHARACTERISTICS • RP106x VIN=Set VOUT+1V, IOUT=1m A, CIN=COUT =1μF, unless otherwise noted. The specification in is checked and guaranteed by design engineering at −40°C ≤ Topt ≤ 85°...
Page 6 RP106x • Dropout Voltage by Output Voltage Topt=25°C Dropout Voltage VDIF (V) Output Voltage VOUT (V) Condition Typ. Max. 0.7 ≤ VOUT < 0.8 0.48 0.62 0.8 ≤ VOUT < 0.9 0.40 0.54 0.9 ≤ VOUT < 1....
Page 7 RP106x TYPICAL APPLICATION VDD VOUT VOUT C1 RP106x C2 Series CE GND (External Components) C1, C2 Ceramic 1.0μF MURATA: GRM155B31A105KE15 TECHNICAL NOTES When using these ICs, consider the following po...
Page 8 RP106x TEST CIRCUITS VDD VOUT C1 RP106x VC2 VOUT IOUT Series CE GND C1=Ceramic 1.0μF C2=Ceramic 1.0μF Basic Test Circuit VDD VOUT VOUT C1 RP106x C2A ISS Series CE GND C1=Ceramic 1.0μF C2=Ceramic 1.0μF...
Page 9 RP106x lt tp lt lt tp lt ■ Constant Slope Circuits The RP106x Series is equipped with a constant slope circuit as a soft-start circuit, which allows the output voltage to start up gradually when the C...
Page 10 tp lt tp lt tp lt RP106x TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current (Topt=25°C) RP106x07xx RP106x12xx 0.8 1.4 0.7 VIN=3.6V 0.4 VIN=3.6V VIN=2.8V VIN=2.8V VIN=1.7V VIN=2.2V VIN=1.1V V...
Page 11 ly rr IS μA ly rr IS μA tp lt RP106x RP106x18xx 2.2 2.0 1.8 1.6 1.4 1.2 1.0 IOUT=1m A IOUT=30m A 0.6 IOUT=50m A 0.4 0.2 Input Voltage VIN (V) 3) Supply Current vs. Input Voltage (Topt=25°C) ly rr IS μ...
Page 12 tp lt tp lt ly rr IS μA RP106x 4) Output Voltage vs. Temperature RP106x07xx RP106x12xx 0.73 1.23 Temperature Topt (°C) Temperature Topt (°C) tp lt ly rr IS μA RP106x18xx 1.83 Temperature Topt (°C) 5) ...
Page 13 ro lt IF ro lt IF ly rr IS μA RP106x RP106x18xx Temperature Topt (°C) 6) Dropout Voltage vs. Output Current ro lt IF RP106x07xx RP106x12xx Topt=85°C Topt=85°C Topt=25°C Topt=25°C Topt=-40°C Topt=-40°C...
Page 14 In lt IN ro lt IF ip le je ti RP106x 7) Dropout Voltage vs Set Output Voltage (Topt=25°C) IOUT=400m A IOUT=300m A IOUT=200m A IOUT=150m A IOUT=50m A IOUT=30m A IOUT=10m A 0.6 0.8 1.2 1.61.4 1.81.0 2.0...
Page 15 ip le je ti ip le je ti RP106x ip le je ti RP106x18xx RP106x18xx IOUT=1m A IOUT=30m A f=0.1k Hz f=0.1k Hz f=1k Hz f=1k Hz f=10k Hz f=10k Hz f=100k Hz f=100k Hz Input Voltage VIN (V) Input Voltage VIN ...
Page 16 tp lt tp lt tp lt RP106x 11) Input Transient Response (C1=none, C2=1.0μF, IOUT=30m A, tr=tf=5μs, Topt=25°C) RP106x07xx RP106x12xx Input Voltage Input Voltage Output Voltage Output Voltage tp rr IO In ...
Page 17 tp lt tp lt tp lt RP106x RP106x12xx RP106x12xx Output Current Output Current 50m A 100m A 1m A 150m A Output Voltage Output Voltage Time t (μs) lt )CE Input Voltage tp Time t (μs) rr IO tp rr IO RP106...
Page 18 tp lt tp lt tp lt RP106x RP106x18xx VIN=2.8V CE Input Voltage Output Voltage IOUT=0m A IOUT=30m A IOUT=400m A lt lt lt Time t (μs) tp lt 14) Turn Off Speed with CE pin (C1=C2=1.0μF, Topt=25°C) RP106x0...
Page 19 lt lt lt tp lt tp lt RP106x tp lt 15) Inrush Current at Start up (C1=1.0μF, Topt=25°C) RP106x07xx RP106x07xx VIN=1.7V VIN=1.7V COUT=1.0μF COUT=10μF Output Voltage 0.75 Output Voltage Inrush Current In...
Page 20 lt lt tp lt tp lt RP106x RP106x18xx RP106x18xx VIN=2.8V VIN=2.8V COUT=1.0μF COUT=10μF 2.5 CE Input Voltage 2.5 CE Input Voltage 1.5 Output Voltage 1.5 Output Voltage Inrush Current Inrush Current In r...
Page 21 RP106x 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 w...
Page 22 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before decid...

Manual Details

Brand Ricoh
Pages 22
File Size 511.87 KB
Published May 29, 2026
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Frequently Asked Questions

What type of capacitor is required when using this regulator?

Ceramic capacitors are recommended to be used with this IC, specifically 1.0μF or more.

How can I set the RP106x into standby mode?

The CE pin controls the operation and can switch the regulator into standby mode ("H" Active).

What is the maximum rated output current (I_OUT)?

Under Absolute Maximum Ratings, the specified Output Current ($I_{OUT}$) rating is 500 mA.

If I want to run it at minimum voltage, what are the requirements?

The input voltage range is from 1.0V to 3.6V, and $V_{IN}$ should be set at least 1V above $V_{OUT}$ for operation.