High Voltage Switching Reaulator

The MC33363A is a monolithic high voltage switching regulator that is specifically designed to operate from a rectified 240 Vac line source. This integrated circuit features an on–chip 700 V/1.5 A SenseFET power switch, 500 V active off–line startup FET, duty cycle controlled oscillator, current
limiting comparator with a programmable threshold and leading edge blanking, latching pulse width modulator for double pulse suppression, high gain error amplifier, and a trimmed internal bandgap reference.

•Enhanced Power Capability Over MC33363
•On–Chip 700 V, 1.5 A SenseFET Power Switch
•Rectified 240 Vac Line Source Operation
•On–Chip 500 V Active Off–Line Startup FET
•Latching PWM for Double Pulse Suppression
•Cycle–By–Cycle Current Limiting
•Input Undervoltage Lockout with Hysteresis
•Output Overvoltage Protection Comparator
•Trimmed Internal Bandgap Reference
•Internal Thermal Shutdown