This part is a kind of semiconductor called 5M0765RC.
Function of this product has KA5M0765RC.
Manufacturers : Fairchild Semiconductor
Image and pinout :

Some of the text within the PDF file :
Preliminary KA5M0765RC S P S The SPS product family is specially designed for an off-line SMPS with minimal external components. The SPS consist of high voltage power SenseFET and current mode PWM IC. Included PWM controller features integrated fixed frequency oscillator, under voltage lock-out, leading edge blanking, optimized gate turn-on/turn-off driver, thermal shutdown protection, over voltage protection, and temperature compensated precision current sources for loop compensation and fault protection circuitry. Compared to discrete MOSFET and PWM controller or RCC solution, a SPS can reduce total component count, design size, weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effectiv [ ... ]
5M0765RC PDF Datasheet Download
