This part is a kind of semiconductor called 5L0365R.

Function of this product has Fairchild Power Switch(FPS).

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

www.fairchildsemi.com KA5x03xx-SERIES KA5H0365R, KA5M0365R, KA5L0365R KA5H0380R, KA5M0380R, KA5L0380R Fairchild Power Switch(FPS) Features • Precision Fixed Operating Frequency (100/67/50kHz) • Low Start-up Current(Typ. 100uA) • Pulse by Pulse Current Limiting • Over Current Protection • Over Voltage Protection (Min. 25V) • Internal Thermal Shutdown Function • Under Voltage Lockout • Internal High Voltage Sense FET • Auto-Restart Mode Applications • SMPS for VCR, SVR, STB, DVD & DVCD • SMPS for Printer, Facsimile & Scanner • Adaptor for Camcorder Description The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consists of a high voltage power SenseFET and a cur [ ... ]

5L0365R PDF Datasheet Download