BCD Semiconductor Manufacturing Limited AP3203
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.| Part No. | AP3203 |
|---|---|
| Datasheet | AP3203 Download |
| Manufacturer |  BCD Semiconductor Manufacturing Limited |
| Description | 3A Asynchronous DC - DC Buck Converter |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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 1 Preliminary Datasheet 380kHz, 3A Asynchronous DC - DC Buck Converter AP3203 Pin Configuration MP Package (PSOP-8) Pin
DESCRIPTION
Figure 2. Pin Configuration of AP3203 (Top View) Pin Number 1 2 3 4 5 6 7 8 Pin Name BS IN SW GND FB COMP EN SS Function Bootstrap pin. A bootstrap capacitor is connected between the BS pin and SW pin.
