Infineon, Resonant Controller 12-Pin, PG-DSO-12 ICE5QR4780BGXUMA1

The Infineon 5th generation of quasi-resonant CoolSET devices offers high performance and a comprehensive suite of protection. It integrates a fly back controller with a valley-switching scheme and an 800V CoolMOS P7 super junction MOSFET in single DSO-12 package.

Auto-restart recovery scheme to minimize interruption to system operation
Extensive protection coverage to increase system robustness
Rapid and adjustable start-up with configuration
2-level selectable active burst-mode level