AP3503 Overview
The AP3503 is a 340kHz fixed frequency, current mode, PWM synchronous 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 switches with low onresistance. Current mode control provides fast transient response and cycle-by-cycle current limit.
AP3503 Key Features
- Input Voltage Range: 4.5V to 18V
- Fixed 340kHz Frequency
- High Efficiency: up to 95%
- 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
