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
·
·
·
·
·
·
·
·
·
·
·
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
·
·
·
·
·
·
·
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
Data Sheet
150mA RF ULDO REGULATOR
Pin Configuration
K Package
(SOT-23-5)
AP2202
V
IN
GND
EN
1
2
3
5
V
OUT
V
IN
GND
1
2
3
5
V
OUT
4
BYP
EN
4
ADJ
R Package
(SOT-89-3)
3
2
1
V
IN
GND (TAB)
V
OUT
Figure 2. Pin Configuration of AP2202 (Top View)
Pin Description
Pin Number
SOT-23-5
1
2
3
4
5
1
SOT-89-3
3
2
Pin Name
V
IN
GND
EN
BYP/ADJ
V
OUT
Input voltage
Ground (TAB for SOT-89-3)
Enable input: CMOS or TTL compatible input. Logic high=enable, logic
low=shutdown
Bypass capacitor for low noise operation/Adjust output
Regulated output voltage
Function
Mar. 2007 Rev. 1. 7
2
BCD Semiconductor Manufacturing Limited
Data Sheet
150mA RF ULDO REGULATOR
Absolute Maximum Ratings (Note 1)
Parameter
Supply Input Voltage
Enable Input Voltage
Power Dissipation
Lead Temperature (Soldering, 10sec)
Junction Temperature
Storage Temperature
ESD (Machine Model)
Thermal Resistance (No Heatsink)
θ
JA
SOT-23-5
SOT-89-3
Symbol
V
IN
V
EN
P
D
T
LEAD
T
J
T
STG
Value
15
15
Internally Limited (Thermal Protection)
260
150
-65 to 150
200
200
o
AP2202
Unit
V
V
W
o
C
o
C
o
C
V
C/W
165
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Recommended Operating Conditions
Parameter
Supply Input Voltage
Enable Input Voltage
Operating Junction Temperature
Symbol
V
IN
V
EN
T
J
Min
2.5
0
-40
Max
13.2
13.2
125
Unit
V
V
o
C
Mar. 2007 Rev. 1. 7
5
BCD Semiconductor Manufacturing Limited
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