• Single 3.3V or 5V Supply
• Push-Pull Driver for Small Transformers
• High Primary-side Current Drive: 500mA
• Spread Spectrum Clocking 
• Thermal Shutdown
• Soft Start
• Small 5-Pin SOT-23 Package
• AEC-Q100 Qualified

The SA52733 is a 500mA, 3.3V~5V, push-pull transformer driver, designed to provide a simple solution for isolation power supplies. The IC contains the carefully designed oscillation and driving circuit to provide precise complementary signals for two N channel MOSFETs. The IC includes a soft-start feature that prevents high inrush current during power up. Its internal protection features include under-voltage lockout and thermal shutdown. The SA52733 is available in a small 5-pin SOT-23 package and qualified with AEC-Q100.