Preliminary
Datasheet
LP2202
250mA,Dual Channel Ultra-Fast CMOS LDO Regulator
General Description
The LP2202 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.
LP2202 offers 2% accuracy, extremely low dropout
voltage (220mV @ 250mA), 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.
LP2202 is short circuit thermal folded back protected.
LP2202 lowers its OTP trip point from 165°C to
110°C when output short circuit occurs (VOUT <
0.4V) providing maximum safety to end users.
LP2202 can operate stably with very small ceramic
output capacitors, reducing required board space and
component cost. LP2202 is available in fixed output
voltages in the SOT-23-6 package.
Features
Wide Operating Voltage Ranges : 2.5V to 5.5V
Low-Noise for RF Application
High PSRR 70dB at 1kHz
No Noise Bypass Capacitor Required
Fast Response in Line/Load Transient
TTL-Logic-Controlled Shutdown Input
Dual LDO Outputs (300mA/300mA)
High Output Accuracy 2%
Ultra-low Quiescent Current 27uA
Thermal Shutdown Protection
Thermal Shutdown Protection
Tiny SOT-23-6 and 8-Lead DFN Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
CDMA/GSM Cellular Handsets
Smart mobile phone
Battery-Powered Equipment
DSC Sensor
Wireless Card
Ordering Information
LP2202 -
□□ □□
□
F: Pb-Free
Package Type
B6: SOT23-6
Out1/Out2 Voltage Type
18/28: 1.8V/2.8V
25/28: 2.5V/2.8V
28/28: 2.8V/2.8V
Pin Configurations
Typical Application Circuit
VIN
5
Vin
LP2202
Vout2
1
1uF
4
3
EN1
EN2
Vout1
GND
6
2
1uF
VOUT2
SOT23-6 (Top View)
1uF
VOUT1
Marking Information
Please see website.
Chip Enable
LP2202 – Ver. 1.0 Datasheet
Dec.-2006
Page 1 of 8
POWER [ LOWPOWER SEMICONDUCTOR INC ]
