Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
General Description
The AP2203 is a 150mA ULDO regulator, which pro-
vides ultra low dropout voltage (typically 165mV at
150mA), very low quiescent current (1
µ
A maximum)
in shutdown mode 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 AP2203 also features an undervoltage monitor
with an error flag output, logic compatible enable/shut-
down 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 AP2203 has 2.5V, 3.0V and 3.3V versions.
The AP2203 is available in space saving 5-pin SOT-
23-5 package.
AP2203
Features
·
·
·
·
·
·
·
·
·
·
·
·
·
Error Flag to Indicate Undervoltage Fault
Up to 150mA Regulator Output
Low Quiescent 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
Zero Off-mode Current
Logic-controlled Enable
Applications
·
·
·
·
·
Cellular Phones
Cordless Phones
Wireless Communicators
PDAs / Palmtops
Consumer Electronics
SOT-23-5
Figure 1. Package Type of AP2203
Mar. 2006 Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
Pin Configuration
AP2203
K Package
(SOT-23-5)
V
IN
GND
EN
1
2
3
5
V
OUT
4
FLAG
Figure 2. Pin Configuration of AP2203 (Top View)
Pin Description
Pin Number
1
2
3
4
5
Pin Name
V
IN
GND
EN
FLAG
V
OUT
Input voltage
Ground
Enable input: CMOS or TTL compatible input. Logic high=enable, logic
low=shutdown
Error flag (Output pin): Open-collector output. Active low indicates an output
undervoltage condition
Regulated output voltage
Function
Mar. 2006 Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
Ordering Information
AP2203
-
E1: Lead Free
Blank: Tin Lead
TR: Tape and Reel
Package
K: SOT-23-5
2.5: Fixed Output 2.5V
3.0: Fixed Output 3.0V
3.3: Fixed Output 3.3V
AP2203
Circuit Type
Package
Temperature
Range
Part Number
Tin Lead
AP2203K-2.5TR
Lead Free
AP2203K-2.5TRE1
AP2203K-3.0TRE1
AP2203K-3.3TRE1
Marking ID
Tin Lead
K3C
K3F
K3G
Lead Free
E3C
E3F
E3G
Packing
Type
Tape & Reel
Tape & Reel
Tape & Reel
SOT-23-5
-40 to 125
o
C
AP2203K-3.0TR
AP2203K-3.3TR
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2006 Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
Absolute Maximum Ratings (Note 1)
Parameter
Supply Input Voltage
Enable Input Voltage
Power Dissipation
Lead Temperature (Soldering, 5sec)
Storage Temperature
ESD (Machine Model)
Thermal Resistance (No Heatsink)
θ
JA
Symbol
V
IN
V
EN
P
D
T
LEAD
T
STG
Value
15
15
Internally Limited (Thermal Protection)
260
-65 to 150
300
200
o
AP2203
Unit
V
V
W
o
C
o
C
V
C/W
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. 2006 Rev. 1. 0
5
BCD Semiconductor Manufacturing Limited
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