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AP3203 Datasheet, PDF (1/11 Pages) BCD Semiconductor Manufacturing Limited – 380kHz, 3A Asynchronous DC - DC Buck Converter | |||
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Preliminary Datasheet
380kHz, 3A Asynchronous DC - DC Buck Converter
AP3203
General Description
The AP3203 is a 380kHz fixed frequency, current
mode, PWM buck (step-down) DC-DC converter,
capable of driving a 3A load with high efficiency,
excellent line and load regulation. The device
integrates N-channel power MOSFET switch with
low on-resistance. The current mode control provides
fast transient response and cycle-by-cycle current
limit.
A standard series of inductors are available from
several different manufacturers optimized for use
with the AP3203. This feature greatly simplifies the
design of switch-mode power supplies.
This IC is available in PSOP-8 package.
Features
⢠Input Voltage Range: 4.75V to 18V
⢠Fixed 380kHz Frequency
⢠High Efficiency: up to 93%
⢠Output Current: 3A
⢠Current Mode Control
⢠Built-in Over Current Protection
⢠Built-in Thermal Shutdown Function
⢠Built-in UVLO Function
⢠Built-in Over Voltage Protection
⢠Programmable Soft-start
Applications
⢠Portable DVD
⢠DPF
⢠LCD-TV
⢠STB
Mar. 2011 Rev. 1. 0
PSOP-8
Figure 1. Package Type of AP3203
BCD Semiconductor Manufacturing Limited
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