This part is a kind of semiconductor called AO4433.

Function of this product has P-Channel Enhancement Mode Field Effect Transistor.

Manufacturers : Alpha & Omega Semiconductors

Image and pinout :

Some of the text within the PDF file :

AO4433 P-Channel Enhancement Mode Field Effect Transistor General Description provide Features VDS (V) = -30V ID = -11 A (V GS = -20V) RDS(ON) < 14mΩ (VGS = -20V) RDS(ON) < 18mΩ (VGS = -10V) ESD Rating: 1.5KV HBM The AO4433 uses advanced trench technology to excellent RDS(ON), and ultra-low low gate charge with a 25V gate rating. This device is suitable for use as a load switch or in PWM applications. The device is ESD protected. Standard product AO4433 is Pb-free (meets ROHS & Sony 259 specifications). AO4433L is a Green Product ordering option. AO4433 and AO4433L are electrically identical. SOIC-8 Top View S S S G D D D D D G S Absolute Maximum Ratings TA=25°C unless otherwise noted Parameter Symbol VDS Drain-Source Voltage VGS Gate-Source Voltage Continuou [ ... ]

AO4433 PDF Datasheet Download