LP2201 Datasheet, PDF (1/8 Pages) Lowpower Semiconductor inc – 200mA,Dual Channel Ultra-Fast CMOS LDO Regulator

Preliminary Datasheet
LP2201
200mA,Dual Channel Ultra-Fast CMOS LDO Regulator
General Description
The LP2201 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.
LP2201 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.
LP2201 is short circuit thermal folded back protected.
LP2201 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.
LP2201 can operate stably with very small ceramic
output capacitors, reducing required board space and
component cost. LP2201 is available in fixed output
voltages in the SOT-23-6 package.
Ordering Information
LP2201 - □ □ □ □ □
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
Thermal Shutdown Protection
Tiny SOT-23-6 Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
CDMA/GSM Cellular Handsets
Smart mobile phone
Battery-Powered Equipment
DSC Sensor
Wireless Card
F: Pb-Free
Package Type
B6: SOT23-6
Out1/Out2 Voltage Type
18/28: 1.8V/2.8V
18/33: 1.8V/3.3V
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
VIN
2
1uF
1
Chip Enable
3
Vin ^LP2201Vout2
EN1
EN2
Vout1
GND
VOUT2
4
1uF
6
VOUT1
1uF
5
Pin Configurations
SOT23-6 (Top View)
Marking Information
Please see website.
LP2201 – Ver. 1.2Datasheet Jul.-2008
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