This part is a kind of semiconductor called AXP209.

Function of this product has Enhanced single Cell Li-Battery and Power System Management IC.

Manufacturers : X-Powers

Image and pinout :

Some of the text within the PDF file :

DATASHEET AXP209 Enhanced single Cell Li-Battery and Power System Management IC X-Powers © 2010 X-Powers Limited - All rights reserved AXP209 Enhanced single Cell Li-Battery and Power System Management IC 目录 1．概述(Summary) 3 2．特性(Feature) 4 3．典型应用(Typical Application) . 5 4．极限参数(Absolute Maximum Ratings) . [ ... ]

AXP209 PDF Datasheet Download