Preliminary Datasheet

LP2203

LP2203 – 01 Ver. 1.1 Datasheet

Feb.-2008

Page 1 of 8

200mA,Dual Channel Ultra-Fast CMOS LDO Regulator

General Description

The LP2203 is a dual channel, low noise, and low

dropout regulator sourcing up to 250mA at each

channel. The range of output voltage is from 1.2V to

3.6V by operating from 2.5V to 5.5V input.

LP2203 offers 2% accuracy, extremely low dropout

voltage (80mV @ 150mA), and extremely low ground

current, only 25µA per LDO. The shutdown current is

near zero current which is suitable for battery-power

devices. Other features include current limiting, over

temperature, output short circuit protection.

LP2203 can operate stably with very small ceramic

output capacitors, reducing required board space and

component cost. LP2203 is available in fixed output

voltages in the USP-6 package.

Ordering Information

LP2203 -

□ □ □ □

□

F: Pb-Free

Package Type

U6: USP-6

Out1/Out2 Voltage Type

18/28: 1.8V/2.8V

18/33: 1.8V/3.3V

18/26: 1.8V/2.6V

25/28: 2.5V/2.8V

28/28: 2.8V/2.8V

28/12: 2.8V/1.2V

28/33: 2.8V/3.3V

30/30: 3.0V/3.0V

30/33: 3.0V/3.3V

33/33: 3.3V/3.3V

Typical Application Circuit

Vout1

LP2203

1

2

3

5

6

EN2

Vin

EN1

VOUT1

VOUT2

ON/OFF

Vout2

VIN

Features

Wide Operating Voltage Ranges : 2.5V to 5.5V 

Low-Noise for RF Application

High PSRR 65dB at 1kHz

No Noise Bypass Capacitor Required 

Fast Response in Line/Load Transient

TTL-Logic-Controlled Shutdown Input

Dual LDO Outputs (200mA/200mA)

High Output Accuracy 2%

Ultra-low Quiescent Current 27uA

Thermal Shutdown Protection

Tiny USP-6 Package

RoHS Compliant and 100% Lead (Pb)-Free

Applications

CDMA/GSM Cellular Handsets

Smart mobile phone

Battery-Powered Equipment

DSC Sensor

Wireless Card

Pin Configurations

Marking Information

Please see website.

USP-6(Top View)