Preliminary
Datasheet
LP2203
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.
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
Ordering Information
LP2203 -
Applications
CDMA/GSM Cellular Handsets
Smart mobile phone
Battery-Powered Equipment
DSC Sensor
Wireless Card
□□ □□
□
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
Pin Configurations
USP-6(Top View)
Typical Application Circuit
VIN
LP2203
2
1
Vin
EN2
EN1
VOUT2
6
Marking Information
Please see website.
Vout1
Vout2
ON/OFF
3
GND
VOUT1
5
LP2203 – 01 Ver. 1.1 Datasheet
4
Feb.-2008
Page 1 of 8
POWER [ LOWPOWER SEMICONDUCTOR INC ]
