AP3502F
Description
The AP3502F is a 340k Hz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 2A load with high efficiency, excellent line and load regulation. The device integrates N-channel power MOSFET switches with low onresistance. Current mode control provides fast transient response and cycle-by-cycle current limit.
The AP3502F employs plete protection to ensure system security, including output Over Voltage Protection, input Under Voltage Lock Out, programmable soft-start, and Over Temperature Protection.
Pin Assignments
(Top View)
BS 1 IN 2 SW 3 GND 4
This IC is available in SOIC-8 package.
Features
- Input Voltage Range: 4.5V to 18V
- Fixed 340k Hz Frequency
- High Efficiency: up to 95%
- Output Current: 2A
- 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
- LCD TV
- Set Top Box
- Portable...
