APW7057 Description
The APW7057 is a 300kHz constant frequency voltage mode synchronous switching controller that drives external N-channel MOSFETs. When the input supply drops close to output, the upper MOSFET remains on, achieving 100% duty cycle. Internal loop pensation is optimized.
APW7057 Key Features
- Operates from +5V Input
- 0.8V Internal Reference Voltage
- ±1.5% Accuracy Over Line, Load and Temp
- 0.8V to V Output Range CC
- Full Duty Cycle Range
- 0% to 100%
- Internal Loop pensation
- Internal Soft Start
- Typical 2ms
- Programmable Over-Current Protection