RICOH RP102x Series Low Noise 300mA LDO Data Sheet User Guide

RP102x Series Low Noise 300m A LDO

The RP102x Series are CMOS-based LDO regulators featuring 300m A output. The RP102x features supply current as low as 50μA, which is far lower than existing lines. Due to a built-in 0.4Ω (at VOUT=2.8V) on-resistor, RP102x can provide a low dropout voltage. RP102x also features excellent line transient response, ripple rejection at 80d B, and low noise. The output voltage accuracy is as high as ± 0.8% and the temperature drift coefficient of output voltage is low at ± 20ppm/°C.

FEATURES • Supply Current (ISS) ························Typ. 50μA (VIN=SET VOUT+1.0V) • Line Regulation·······························Typ. 0.02%/V • Standby Current (Istandby) ·················Typ. 0.1μA (Same as above, CE="L") • Fold-back Protection Circuit ···········Current limit Typ. 50m A • Dropout Voltage (VDIF) ····················Typ. 0.12V (IOUT=300m A, VOUT=2.8V) • Auto-Discharge function ·················D Version • Ripple Rejection (RR)·····················Typ. 80d B (f=1k Hz) • Packages········································WLCSP-4-P2, • Input Voltage Range (VIN) ···············1.7V to 5.25V DFN(PLP)1820-6, • Output Voltage Range (VOUT)··········1.2V to 3.3V (internally fixed) SOT-23-5 • Output Voltage Accuracy ················± 0.8% • Ceramic capacitors can be used. ···1μF or more • Temp. coeff. of Output Voltage ·······Typ. ± 20ppm/°C

BLOCK DIAGRAMS RP102xxx1B RP102xxx1D (Without Auto-Discharge function) (With Auto-Discharge function)

VDD VOUT VDD VOUT

ro lt IF

Vref Vref

Current Limit Current Limit

CE GND CE GND

SELECTION GUIDES

.xx. : Specify the output voltage within the range of 1.2V (.12.) to 3.3V (.33.)

Halogen Free Package Q'ty per Reel Part No.

in 0.1V steps.

WLCSP-4-P2 5,000 pcs RP102Z.xx.1.∗ -TR-F

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

DFN(PLP)1820-6 5,000 pcs RP102K.xx.1.∗ -TR

(.D.) with auto-discharge function.

SOT-23-5 3,000 pcs RP102N.xx.1.∗ -TR-FE

PACKAGES (Top View) TYPICAL CHARACTERISTIC

WLCSP-4-P2 DFN(PLP)1820-6 SOT-23-5 RP102x251x Dropout Voltage vs. Output Current

1 VOUT

1 VDD 1 VDD

2 VOUT

2 CE 2 GND

3 GND

3 GND 3 CE

4 VOUT 4 NC

5 VDD

5 VOUT

6 VDD Output Current IOUT (m A)

∗) The tab is substrate level (GND). ∗1) The VOUT pin VDD pin must be wired each other when it is mounted on board.

APPLICATIONS • Power source for hand-held communication equipment, cameras, and VCRs • Power source for battery-powered equipment • Power source for home appliances

No.EK-141-101001 CMOS LDO Regulator