This part is a kind of semiconductor called AON7403.

Function of this product has 30V P-Channel MOSFET.

Manufacturers : Alpha & Omega Semiconductors

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr AON7403 30V P-Channel MOSFET General Description The AON7403 uses advanced trench technology to provide 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. Product Summary VDS ID (at VGS=-10V) RDS(ON) (at VGS=-10V) RDS(ON) (at VGS=-5V) -30V -29A < 18mΩ < 36mΩ 100% UIS Tested Top View DFN 3x3_EP Bottom View D Top View 1 2 3 4 8 7 6 5 G S Pin 1 Absolute Maximum Ratings TA=25° C unless otherwise noted Parameter Symbol Drain-Source Voltage VDS Gate-Source Voltage Continuous Drain Current Pulsed Drain Current C Continuous Drain Current Avalanche Current C Repetitive avalanche energy L=0.1mH C TC=25° C Power Dissipation B Maximum -30 ±25 -29 -18 -80 -11 -8.5 24 29 [ ... ]

AON7403 PDF Datasheet Download