RICOH RP201x SERIES Data Sheet User Guide

Summary

This advanced LDO voltage regulator series provides reliable power management for compact electronic devices. Featuring three distinct operational modes—Standby, Fast Response, and Auto ECO Mode—it ensures efficient power consumption while maintaining high output accuracy. The manual details its robust specifications, including low dropout voltage, built-in foldback protection, multiple miniature package options (WLCSP, DFN), and comprehensive selection guides. Ideal for designers creating portable communication equipment, battery-powered gear, and general precision appliances.

📄 Preview ‹ PAGE OF 26 ›

‹

RICOH RP201x SERIES Data Sheet User Guide - Page 1

›

Page 1 Text Content

RP201x SERIES

3-MODE 150m A LDO REGULATOR

NO.EA-234-120404

OUTLINE The RP201x Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy, low dropout voltage and low supply current. These ICs perform with the chip enable function and realize a standby mode with ultra low supply current. To prevent the destruction by over current, the current limit circuit is included. The RP201x Series have 3-mode. One is standby mode with CE pin. Other two modes are realized with ECO Function. Fast Response Mode (Fast Mode) and Fast and Low Power auto-change Mode (Auto ECO Mode) are alternative with Auto Eco pin (AE pin). Supply current of IC itself at light load is automatically reduced at Auto ECO Mode compared with Fast Mode. The output voltage is maintained between Fast Mode and Auto ECO Mode. Without AE pin type is also available. It is an LDO regulator with Auto ECO mode. (RP201Z in WLCSP.) Since the packages for these ICs are SOT-23-5 (Limited), SC-88A (Limited), thin DFN(PLP)1212-6, and WLCSP-4-P5, high density mounting of the ICs on boards is possible. RP201Q (SC-88A (Limited)), RP201K (DFN(PLP)1212-6) and RP201N (SOT-23-5 (Limited)) has AE pin, then if the AE pin is "H", Fast Mode is available. If the AE pin is set at "L" level, Auto ECO Mode operation is available.

FEATURES • Supply Current (Low power Mode) ..............................Typ. 1.0μA (VOUT ≤ 1.85V) • Supply Current (Fast Mode).........................................Typ. 55μA • Supply Current (Standby Mode)...................................Typ. 0.1 μA • Ripple Rejection...........................................................Typ. 70d B (f=1k Hz) • Input Voltage Range ....................................................1.4V to 5.25V • Output Voltage Range..................................................0.8V to 4.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Output Voltage Accuracy..............................................±1.0% (VOUT > 2.0V, Topt=25°C) • Temperature-Drift Coefficient of Output Voltage ..........Typ. ±50ppm/°C • Dropout Voltage ...........................................................Typ. 0.12V (IOUT=150m A, VOUT=2.8V) • Line Regulation ............................................................Typ. 0.02%/V • Packages .....................................................................DFN(PLP)1212-6, SOT-23-5 (Limited),

SC-88A (Limited), WLCSP-4-P5

• Built-in Fold Back Protection Circuit ............................Typ. 50m A (Current at short mode) • Ceramic capacitors are recommended........................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 RP201x SERIES Data Sheet User Guide

Page 1 RP201x SERIES 3-MODE 150m A LDO REGULATOR NO.EA-234-120404 OUTLINE The RP201x Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy, low dropout voltage and low supply c...

Page 2 RP201x BLOCK DIAGRAMS RP201K/N/Qxxx B RP201Zxx1B VDD VOUT VDD VOUT Vref Vref Current Limit Current Limit CE GND CE GND RP201K/N/Qxxx D RP201Zxx1D VDD VOUT VDD VOUT Vref Vref Current Limit Current Limi...

Page 3 RP201x SELECTION GUIDE The output voltage, auto discharge function, and package, etc. for the ICs can be selected at the user’s request. Product Name Package Quantity per Reel Pb Free Halogen Free RP2...

Page 4 RP201x PIN CONFIGURATIONS • WLCSP-4-P5 • DFN(PLP)1212-6 Silicon Side Bump Side Top View Bottom View • SC-88A • SOT-23-5 5 4 (mark side) (mark side)

Page 5 RP201x PIN DESCRIPTIONS • WLCSP-4-P5 Pin No Symbol Pin Description 1 VDD Input Pin 2 CE Chip Enable Pin ("H" Active) 3 GND Ground Pin 4 VOUT Output Pin • DFN(PLP)1212-6 Pin No Symbol Pin Des...

Page 6 RP201x ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VIN Input Voltage 6.0 V VCE Input Voltage (CE Pin) −0.3 to 6.0 V VAE Input Voltage (AE Pin) −0.3 to 6.0 V VOUT Output Voltage −0.3 to VIN+0.3 V ...

Page 7 RP201x ELECTRICAL CHARACTERISTICS 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°C. • RP20...

Page 8 RP201x Symbol Item Conditions Min. Typ. Max. Unit VCEL CE Input Voltage "L" 0.4 V AE Pull-down Constant IAEPD Current∗3 0.1 μA VAEH AE Input Voltage "H"∗3 1.0 V VAEL AE Input Volta...

Page 9 RP201x TYPICAL APPLICATION VDD VOUT VOUT C1 RP201x Series AE CE GND (External Components) C1, C2 : Ceramic Capacitor 1.0μF MURATA: GRM155B31A105KE15 TECHNICAL NOTES When using these ICs, consider the ...

Page 10 RP201x TEST CIRCUITS VDD VOUT C2 VOUT IOUT RP201x Series GND CE AE Basic Test Circuit VDD VOUT VOUT ISS C2 RP201x Series GND CE AE Test Circuit for Supply Current VDD VOUT C2 IOUT Pulse RP201x Generat...

Page 11 tp lt tp lt tp lt RP201x TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current (C1=1.0μF, C2=1.0μF, Topt=25°C) RP201x08xx RP201x18xx 1.0 2.0 0.9 1.8 0.8 1.6 VIN=1.4V VIN=2.8V VIN=1.8V VIN=3.8V ...

Page 12 ly rr IS μA ly rr IS μA tp lt RP201x RP201x28xx RP201x40xx 4.0 5.0 3.6 4.5 3.2 4.0 2.8 3.5 2.4 3.0 2.0 2.5 1.6 2.0 1.2 IOUT=1m A 1.5 IOUT=1m A 0.8 IOUT=30m A 1.0 IOUT=30m A IOUT=50m A IOUT=50m A Input...

Page 13 tp lt ly rr IS μA ly rr IS μA RP201x 4) Supply Current vs. Output Current (C1=1.0μF, C2=1.0μF, Topt=25°C) RP201x08xx RP201x18xx VIN=1.8V VIN=2.8V 0.1m A 150m A 0.1m A 150m A Low Power Mode to Fast Mod...

Page 14 ly rr IS μA ly rr IS μA tp lt RP201x RP201x28xx RP201x40xx VIN=3.8V VIN=5V Temperature (°C) Temperature (°C) ly rr IS μA ly rr IS μA tp lt 6) Supply Current vs. Temperature (C1=1.0μF, C2=1.0μF) RP201x...

Page 15 ro lt IF ly rr IS μA ly rr IS μA RP201x RP201x08xx (Fixed Fast Mode) RP201x18xx (Fixed Fast Mode) VIN=1.8V VIN=2.8V AE=1.8V AE=2.8V Temperature Topt (°C) Temperature Topt (°C) ro lt IF ly rr IS μA ly ...

Page 16 ro lt IF ro lt IF ro lt IF RP201x RP201x10xx RP201x15xx Output Current IOUT (m A) Output Current IOUT (m A) RP201x26xx RP201x40xx ro lt IF ro lt IF Output Current IOUT (m A) Output Current IOUT (m A) ...

Page 17 ip le je ti ip le je ti ip le je ti RP201x 9) Ripple Rejection vs. Input Bias Voltage (C1=none, C2=1.0μF, Ripple=0.2Vp-p, Topt=25°C) RP201x28xx RP201x28xx (Auto ECO Low Power Mode) (Fixed Fast Mode) I...

Page 18 tp lt tp lt ip le je ti RP201x RP201x28xx RP201x40xx VIN=3.8V+0.2Vp-p VIN=5.0V+0.2Vp-p IOUT=1m A (AE="L") IOUT=1m A (AE="L") IOUT=1m A (AE="H") IOUT=1m A (AE="H&quot...

Page 19 tp lt tp lt tp lt RP201x RP201x08xx (Fixed Fast Mode) RP201x18xx (Fixed Fast Mode) VIN=1.8V 2.8V VIN=2.8V 3.8V IOUT=30m A IOUT=30m A Input Voltage Input Voltage 1.798 0.798 1.796 0.796 1.794 0.794 Out...

Page 20 tp lt tp lt tp lt RP201x RP201x08xx RP201x18xx (Auto ECO Fast Mode) (Auto ECO Fast Mode) VIN=1.8V VIN=2.8V AE=0V AE=0V Output Current Output Current 50m A 100m A 50m A 100m A Output Voltage Output Vol...

Page 21 tp lt tp lt tp lt RP201x RP201x08xx RP201x18xx (Fixed Fast Mode) (Fixed Fast Mode) VIN=1.8V VIN=2.8V AE=1.8V AE=2.8V Output Current Output Current 0m A 30m A 0m A 30m A Output Voltage Output Voltage 0...

Page 22 tp lt tp lt tp lt RP201x RP201x28xx RP201x40xx (Fixed Fast Mode) (Fixed Fast Mode) VIN=3.8V VIN=5.0V AE=3.8V AE=5.0V Output Current Output Current 0.1m A 100m A 0.1m A 100m A 2.71 Output Voltage 3.90 ...

Page 23 tp lt tp lt tp lt RP201x 13) AE Switch Transient Response (C1=1.0μF, C2=1.0μF, tr=tf=0.5μs, Topt=25°C) RP201x08xx RP201x18xx IOUT=1m A IOUT=1m A AE Input Voltage AE Input Voltage Output Voltage Output...

Page 24 tp lt tp lt tp lt RP201x RP201x28xx RP201x40xx VIN=3.8V VIN=5.0V CE Input Voltage CE Input Voltage IOUT=0m A IOUT=1m A IOUT=30m A IOUT=100m A Output Voltage IOUT=0m A Output Voltage IOUT=1m A IOUT=30m...

Page 25 RP201x 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 26 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	26
File Size	449.45 KB
Published	June 05, 2026

55 views

Enter the captcha to get the download link:

Frequently Asked Questions

What modes can the RP201x series operate in?

It supports three modes: Standby mode (via CE pin), Fast Response Mode, and Auto ECO Mode.

How is the Auto ECO Mode activated?

If the AE pin is set at a 'L' level, the device operates in Auto ECO Mode.

What is the typical minimum supply current for standby mode?

The supply current in Standby Mode is typically 0.1 μA.

What are some recommended packages for mounting these ICs?

Recommended packages include DFN(PLP)1212-6, SOT-23-5 (Limited), SC-88A (Limited), and WLCSP-4-P5.