This part is a kind of semiconductor called AO4456.

Function of this product has N-Channel 30-V (D-S) MOSFET.

Manufacturers : Freescale

Image and pinout :

Some of the text within the PDF file :

Analog Power Freescale N-Channel 30-V (D-S) MOSFET These miniature surface mount MOSFETs utilize a high cell density trench process to provide low rDS(on) and to ensure minimal power loss and heat dissipation. Typical applications are DC-DC converters and power management in portable and battery-powered products such as computers, printers, PCMCIA cards, cellular and cordless telephones. • • • • Low rDS(on) provides higher efficiency and extends battery life Low thermal impedance copper leadframe SOIC-8 saves board space Fast switching speed High performance trench technology AM4434N AO4456/MC4456 PRODUCT SUMMARY VDS (V) rDS (on ) m(Ω) 6 @ VGS = 4.5V 30 8 @ VGS = 2.5V ID (A) 18.6 16.1 1 2 3 4 8 7 6 5 AB SOLUTE MAXIMUM RATINGS (TA = 25 C UNLESS OTHERWISE NOTED) Parame te r S [ ... ]

AO4456 PDF Datasheet Download