AP3440 Description
The AP3440 is a current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 4A load with high efficiency, excellent line and load regulation. The device integrates two N-channel power MOSFETs with low onresistance. Current mode control provides fast transient response and cycle-by-cycle current limit.
AP3440 Key Features
- Input Voltage Range: 2.95V to 5.5V
- 0.8V Reference Voltage with ±3% Precision
- Two 30m(Typical) MOSFETs for High Efficiency at 4A Load
- High Efficiency: Up to 94%
- Output Current: 4A
- Programmable Frequency:200kHz to 2MHz
- Current Mode Control
- Synchronizes to External Clock
- Adjustable Soft-start
- Soft Start-up into Pre-biased Output