Data Sheet
150mA RF ULDO REGULATOR AP2202
General Description Features
The AP2202 is a 150mA ULDO regulator which pro-
Up to 150mA Output Current
vides very low noise, ultra low dropout voltage
Low Standby Current
(typically 165mV at 150mA), very low standby current
Low Dropout Voltage: V =165mV at 150mA
DROP
(1A maximum) and excellent power supply ripple
High Output Accuracy: 1%
rejection (PSRR 75dB at 100Hz) in battery powered
Good Ripple Rejection Ability: 75dB at 100Hz
applications, such as handsets and PDAs and in noise
and I =100A
OUT
sensitive applications, such as RF electronics.
Tight Load and Line Regulation
The AP2202 also features logic compatible enable/
Low Temperature Coefficient
shutdown control inputs, a low power shutdown mode
Over Current Protection
for extended battery life, over current protection, over
Thermal Protection
temperature protection, as well as reversed-battery pro-
Reverse-battery Protection
tection.
Logic-controlled Enable
The AP2202 has adjustable, 2.5V, 2.6V, 2.8V, 3.0V and
Applications
3.3V versions.
The AP2202 is available in space saving SOT-23-5 and
Cellular Phones
SOT-89 packages.
Cordless Phones
Digital Still Cameras
Wireless Communicators
PDAs / Palmtops
PC Mother Board
Consumer Electronics
SOT-23-5 SOT-89
Figure 1. Package Types of AP2202
Jul. 2011 Rev. 2. 2 BCD Semiconductor Manufacturing Limited
1 Data Sheet
150mA RF ULDO REGULATOR AP2202
Pin Configuration
K Package
(SOT-23-5)
V V
1 5
IN OUT
V
V
1 5 OUT
IN
GND
2
GND 2
ADJ
EN34
EN34 BYP
R Package
(SOT-89)
12 3
V
GND V
OUT
IN
(TAB)
Figure 2. Pin Configuration of AP2202 (Top View)
Pin Description
Pin Number
Function
Pin Name
SOT-23-5 SOT-89
13 V Input voltage
IN
2 2 GND Ground (TAB for SOT-89)
3 EN Enable input: CMOS or TTL compatible input. Logic high=enable, logic
low=shutdown
4 BYP/ADJ Bypass capacitor for low noise operation/Adjust output
51 V Regulated output voltage
OUT
Jul. 2011 Rev. 2. 2 BCD Semiconductor Manufacturing Limited
2