Data Sheet
150mA RF ULDO REGULATOR
General Description
The AP2202 is a 150mA ULDO regulator which pro-
vides very low noise, ultra low dropout voltage
(typically 165mV at 150mA), very low standby current
(1
µ
A maximum) and excellent power supply ripple
rejection (PSRR 75dB at 100Hz) in battery powered
applications, such as handsets and PDAs and in noise
sensitive applications, such as RF electronics.
The AP2202 also features logic compatible enable/
shutdown control inputs, a low power shutdown mode
for extended battery life, over current protection, over
temperature protection, as well as reversed-battery pro-
tection.
The AP2202 has adjustable, 2.5V, 2.6V, 2.7V, 2.8V,
2.9V, 3.0V, 3.3V and 4.0V versions.
The AP2202 is available in space saving SOT-23-5 and
SOT-89-3 packages.
AP2202
Features
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Up to 150mA Output Current
Low Standby Current
Low Dropout Voltage: V
DROP
=165mV at 150mA
High Output Accuracy: ±1%
Good Ripple Rejection Ability: 75dB at 100Hz
and I
OUT
=100
µA
Tight Load and Line Regulation
Low Temperature Coefficient
Over Current Protection
Thermal Protection
Reverse-battery Protection
Logic-controlled Enable
Applications
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Cellular Phones
Cordless Phones
Digital Still Cameras
Wireless Communicators
PDAs / Palmtops
PC Mother Board
Consumer Electronics
SOT-23-5
SOT-89-3
Figure 1. Package Types of AP2202
Mar. 2007 Rev. 1. 7
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
