This part is a kind of semiconductor called DM0465R.

Function of this product has FSDM0465R.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

June 2006 FSCM0465R Green Mode Fairchild Power Switch (FPS™) FSCM0465R Green Mode Fairchild Power Switch (FPS™) Features „ Internal Avalanche Rugged SenseFET „ Low Start-up Current (max. 40µA) „ Low Power Consumption; under 1W at 240VAC and Description The FSCM0465R is an integrated Pulse-Width Modulator (PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high-voltage powerswitching regulator that combines an avalanche rugged SenseFET with a current mode PWM control block. The PWM controller includes an integrated fixed-frequency oscillator, under-voltage lockout, leading edge blanking (LEB), optimized gate driver, internal soft-start, temperatur [ ... ]

DM0465R PDF Datasheet Download