Data Sheet
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER
General Description
The AP4313 is a highly integrated solution for a con-
stant voltage/constant current mode SMPS application.
The AP4313 contains one 1.21V voltage reference
with
±
1% accuracy, one current sensing circuit and two
operational amplifiers. Combining the voltage refer-
ence with one operational amplifier makes AP4313 an
ideal voltage controller for use in adapters and battery
chargers. The other low voltage reference combined
with the other operational amplifier makes it an ideal
current limiter for output low side current sensing.
The AP4313 is available in SOT-23-6 package.
AP4313
Features
·
·
·
·
·
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Constant Voltage and Constant Current Control
Precision Internal Voltage Reference
Few External Components
Easy Compensation
Low Supply Current: 0.5mA
Operating Temperature Range: -40 to 105
o
C
Applications
·
·
Adapters
Battery Chargers
SOT-23-6
Figure 1. Package Type of AP4313
Apr. 2007 Rev. 1. 5
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
