RICOH RP201x Series Owner's Manual and User Guide

RP201x Series

Manual/Automatic Mode Shift Low Voltage 150m A LDO

The RP201x Series are CMOS-based manual/automatic mode shift LDO regulators featuring 150m A output. In auto switching mode, the operation can switch automatically to fast response mode or low power mode of the ECO function according to output current. (Automatic switching to fast response mode under IOUT>8m A conditions or to low power mode under IOUT<1m A conditions.) In low power mode, supply current is as low as 1.5μA. In fast response mode, ripple rejection is 70d B and noise is low. By inputting control signal into the AE pin, the mode of the regulator can be fixed with fast response mode. In addition to a 0.69mm square WLCSP-4-P5 package and a 1.2mm square DFN(PLP)1212-6 are also available.

FEATURES • Supply Current (ISS2) ··················· Typ. 55μA (Fast mode, VIN=SET VOUT+1.0V) • Output Voltage Accuracy ················± 1% • Supply Current (ISS1) ··················· Typ. 1.5μA (Low power mode, same as above, VOUT=2.8V) • Temp. coeff. of Output Voltage ·······Typ. ± 50ppm/°C • Standby Current (Istandby) ············· Typ. 0.1μA (Same as above, CE="L") • Line Regulation·······························Typ. 0.02%/V (Fast mode) • Dropout Voltage (VDIF) ················ Typ. 0.12V (IOUT=150m A, VOUT=2.8V) • Fold-back Protection Circuit ···········Current limit Typ. 50m A • Ripple Rejection (RR)················· Typ. 70d B (f=1k Hz, Fast mode) • Auto-Discharge function ·················D Version • Input Voltage Range (VIN) ··········· 1.4V to 5.25V • Packages········································WLCSP-4-P5, DFN(PLP)1212-6, • Output Voltage Range (VOUT)······ 0.8V to 4.0V (internally fixed) • Ceramic capacitor 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 RP201xxx1B RP201xxx1D (Without Auto-Discharge function) (With Auto-Discharge function)

AE AE

VDD ro po ut ol ta ge IF (m VOUT VDD VOUT

Vref Vref

Current Limit Current Limit

CE GND CE GND

WLCSP-4-P5 type does not have . WLCSP-4-P5 type does not have .

SELECTION GUIDES

.xx. : Specify the output voltage within the range of 0.8V (.08.) to 4.0V (.40.)

Halogen Free Package Q'ty per Reel Part No.

in 0.1V steps.

WLCSP-4-P5 5,000 pcs RP201Z.xx.1.∗ -TR-F

.∗ : Select from (.B.) without auto-discharge function or DFN(PLP)1212-6 5,000 pcs RP201K.xx.1.∗ -TR (.D.) with auto-discharge function

PACKAGES (Top View) TYPICAL CHARACTERISTIC

WLCSP-4-P5 DFN(PLP)1212-6 RP201x261x Dropout Voltage vs. Output Current

1 VDD 1 AE 2 CE 2 GND 3 GND 3 CE 4 VOUT 4 VDD

5 NC 6 VOUT

Output Current IOUT (m A)

∗) WLCSP-4-P5 does not have AE pin.

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 appliance

No.EK-234-120403 150m A CMOS LDO Regulator