AP3790
Description
Pin Assignments The AP3790 is a high accuracy and low cost switching mode power supply controller to drive power bipolar transistor for battery charger/adapter applications. The controller regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM).
Key Features
- compatible to MediaTek Pump ExpressTM Protocol
- Ultra-Low Standby Power Consumption
- Valley-turn On to Reduce Switching Loss and Benefit for EMI
- Piece-wise Frequency Reduction to Enhance Conversion Efficiency and Suppress Audio Noise
- ±5% Constant Voltage Accuracy for 5V Output
- Audio Noise Suppression
- Open Circuit Protection (OCkP)
- Current Sense Resistor Short Protection
- Over Voltage Protection (OVP)
- Over Temperature Protection (OTP)
