MC33363ADW

AC DC Converters, Offline Switchers Overview

The MC33363ADW is a monolithic high voltage switching regulator designed for rectified 240 Vac line source operation. It integrates a 700 V, 1.5 A SENSEFET power switch and a 500 V active off-line startup FET. The device includes a duty cycle controlled oscillator, current limiting comparator with programmable threshold and leading edge blanking, latching pulse width modulator for double pulse suppression, high gain error amplifier, and trimmed internal bandgap reference.

AC DC Converters, Offline Switchers Feature Summary

• Integrated 700 V, 1.5 A SENSEFET power switch
• On-chip 500 V active off-line startup FET
• Latching PWM for double pulse suppression
• Cycle-by-cycle current limiting and thermal shutdown

AC DC Converters, Offline Switchers Applications

• Offline switching regulators
• Flyback converters
• Forward converters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific datasheet revision and package dimensions against the manufacturer's official documentation before integration. Confirm that the 16-lead wide body surface mount package aligns with the target PCB footprint requirements. Ensure compliance with RoHS standards if applicable to the end product specifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring high voltage isolation and integrated power switching capabilities directly from AC line sources. The enhanced power capability over standard variants makes it suitable for higher power offline designs. Consider the wide body package for improved thermal performance in dense layouts.

AC DC Converters, Offline Switchers Part Context

This part belongs to the MC33363 family of high voltage switching regulators. It serves as an enhanced version offering increased current handling compared to baseline models. The series is widely used in isolated power supply designs where direct AC line connection is required without external bias windings.

AC DC Converters, Offline Switchers Replacement Considerations

MC33363ADWG is a lead-free variant of the same functional device. Standard MC33363 offers lower current capacity (1.0 A) but shares similar control features.