APW8743 Overview
The device is specially designed to provide high efficiency at lighter loads in the range of 4 to 50mA as the application requires while providing peak currents of up to 500mA. The APW8743/A/B is equipped with an automatic PFM/ PWM mode operation. At light load, the converter operates in the PFM mode to reduce the switching losses and provide high efficiency.
APW8743 Key Features
- Support wide input voltage range from 5.0V to 22V
- 1 high efficiency COT Mode with 0.5A output current capability for VNN_BYP
- 1 high efficiency COT Mode with 0.5A output current capability for V1P05A_BYP
- Fixed 500KHz Switching Frequency for each channel
- Automatic switch over PWM/PFM Control
- Stable with low ESR Ceramic output capacitors
- Built VIN and VCC POR Control
- Built in Current Limit Protection with Latch off Mode
- Built in Under Voltage Protection with Latch off Mode
- Built in Over Voltage Protection with Latch off Mode