Data Sheet
300mA RF ULDO REGULATOR
General Description
The AP2210 is a 300mA ULDO regulator which pro-
vides very low noise, ultra low dropout voltage
(typically 250mV at 300mA), 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, PDAs and in noise sen-
sitive applications, such as RF electronics.
The AP2210 also features individual 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-bat-
tery protection.
The AP2210 has 2.5V, 2.8V, 3.0V and 3.3V versions.
The AP2210 is available in space saving SOT-23-3 and
SOT-23-5 packages.
AP2210
Features
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Up to 300mA Output Current
Excellent ESR Stability
Low Standby Current
Low Dropout Voltage: V
DROP
=250mV at 300mA
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
Wireless Communicators
PDAs/Palmtops
PC Mother Board
Consumer Electronics
SOT-23-3
SOT-23-5
Figure 1. Package Types of AP2210
Mar. 2007 Rev. 1. 2
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
