Features

 Very Low Start-up Current

 Current Mode Control

 Non-audible-noise Green-mode Control

 Skip Mode Adjustable

 Internal Slope Compensation

 Soft Start During Startup Process

 Frequency Fold Back for High Average Efficiency

 Secondary Short Winding Protection with FOCP

 Soft Switching for Reducing EMI

 VCC Maintain Mode

 Latch Function for OTP

 Useful Pin Fault Protection:

SENSE Pin Floating

CTRL Pin Short to Ground

FB/Opto-coupler Open/Short

 Comprehensive System Protection Feature:

VCC Over Voltage Protection (VOVP)

Over Load Protection (OLP)

 Mini Size with Packages

 Pin to Pin Compatible with AP3103

Applications

 Audio Power Supply

 AC/DC Switching Power Supply