This part is a kind of semiconductor called APM2305.

Function of this product has P-Channel Enhancement Mode MOSFET.

Manufacturers : Anpec Electronics

Image and pinout :

Some of the text within the PDF file :

APM2305 P-Channel Enhancement Mode MOSFET Features Pin Description • -16V/-3.5A , RDS(ON)=60mΩ(typ.) @ V =-4.5V GS RDS(ON)=70mΩ(typ.) @ V =-2.5V GS RDS(ON)=83mΩ(typ.) @ VGS=-1.8V • Super High Dense Cell Design for Extremely Low RDS(ON) • Reliable and Rugged • SOT-23 Package Applications D 3 12 GS Top View of SOT-23 S • Power Management in Notebook Computer , Portable Equipment and Battery Powered Systems. Ordering and Marking Information G D P-Channel MOSFET APM2305 Handling Code Temp. Range Package Code Package Code A : SOT-23 Operation Junction Temp. Range C : -55 to 150°C Handling Code TR : Tape & Reel APM2305 A : M05X X - Date Code Absolute Maximum Ratings (TA = 25°C unless otherwise noted) Symbol Parameter Rating Unit VDSS VGSS Drain- [ ... ]

APM2305 PDF Datasheet Download