RICOH RP200x Series Manual - Automatic Mode Shift, Low Voltage Operation 300mA LDO Data Sheet User Guide

RP200x Series

Manual/Automatic Mode Shift Low Voltage 300m A LDO

The RP200x Series are CMOS-based manual/automatic mode shift LDO regulators featuring 300m 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 SOT-23-5 packages, 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) • Temp. coeff. of Output Voltage ······· Typ. ± 50ppm/°C • Supply Current (ISS1) ·······················Typ. 1.5μA (Low power mode, same as above) • Line Regulation ······························ Typ. 0.02%/V (Fast mode) • Standby Current (Istandby) ·················Typ. 0.1μA (Same as above, CE="L") • Fold-back Protection Circuit ··········· Current limit Typ. 50m A • Dropout Voltage (VDIF) ····················Typ. 0.23V (IOUT=300m A, VOUT=2.8V) • Auto-Discharge function················· D Version • Ripple Rejection (RR)·····················Typ. 70d B (f=1k Hz, Fast mode) • Packages ······································· WLCSP-4-P5, DFN(PLP)1212-6, • Input Voltage Range (VIN) ···············1.4V to 5.25V SOT-23-5 • Output Voltage Range (VOUT)··········0.8V to 4.0V (internally fixed) • Ceramic capacitor can be used.····· 1μF or more • Output Voltage Accuracy ················± 1%

(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 RP200xxx1B RP200xxx1D (Without Auto-Discharge function) (With Auto-Discharge function)

AE AE

ro po ut ol ta ge IF (m

VDD 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 RP200Z.xx.1.∗ -TR-F

.∗ : Select from (.B.) without auto-discharge function or

DFN(PLP)1212-6 5,000 pcs RP200K.xx.1.∗ -TR

(.D.) with auto-discharge function

SOT-23-5 3,000 pcs RP200N.xx.1.∗ -TR-FE

PACKAGES (Top View) TYPICAL CHARACTERISTIC

WLCSP-4-P5 DFN(PLP)1212-6 SOT-23-5 RP200x261x Dropout Voltage vs. Output Current

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

5 NC 5 VOUT 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 appliances

No.EK-182-120403 300m A CMOS LDO Regulator