Part Number : DMO265R
Function :DMO265R = DM0265R FAIRCHILD / FSDH0265RN, FSDM0265RN
Manufacturer : Fairchild Semiconductor
Pinout : 
Description
The FSDx0265RN(x stands for M, H) are integrated Pulse Width Modulators (PWM) and Sense FETs specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components.
Both devices are integrated high voltage power switching regulators which combine an avalanche rugged Sense FET with a current mode PWM control block.
Datasheet PDF Download
Other datasheets in the file : DM0265R,DM0265RL,DM0265RN,DM0365RL,DM0365RN