This part is a kind of semiconductor called AO4952.

Function of this product has 30V Dual Asymmetric N-Channel AlphaMOS.

Manufacturers : Alpha & Omega Semiconductors

Image and pinout :

Some of the text within the PDF file :

AO4952 30V Dual Asymmetric N-Channel AlphaMOS General Description • Latest Trench Power AlphaMOS (αMOS LV) technology • Integrated Schottky Diode (SRFET) on Low-Side • Very Low RDS(on) at 4.5V VGS • Low Gate Charge • High Current Capability • RoHS and Halogen-Free Compliant Application • DC/DC Converters in Computing, Servers, and POL • Isolated DC/DC Converters in Telecom and Industrial Product Summary VDS ID (at VGS=10V) RDS(ON) (at VGS=10V) RDS(ON) (at VGS=4.5V) 100% UIS Tested 100% Rg Tested Q1 30V 11A <10.5mΩ <15.5mΩ Q2 30V 11A <11.5mΩ <16.5mΩ Top View SOIC-8 Bottom View Top View Q1: SRFETTM Soft Recovery MOSFET: Integrated Schottky Diode D1 Pin1 D2 G2 D2 S2/D1 G1 S2/D1 S1 S2/D1 G1 S1 Absolute Maximum Ratings TA=25°C unless otherwise noted [ ... ]

AO4952 PDF Datasheet Download