This part is a kind of semiconductor called AX6607A.

Function of this product has 600mA LDO Linear Regulator.

Manufacturers : AXElite

Image and pinout :

Some of the text within the PDF file :

AX6607A 600mA LDO Linear Regulator with Shutdown  GENERAL DESCRIPTION The AX6607A is a low dropout, positive linear regulator with very low quiescent. It can supply up to 600mA output current. The BP pin with a 10nF bypass capacitor can help reduce the output noise level. The characteristics of low dropout voltage and less quiescent current make it good for some critical current application, for example, some battery powered devices. The typical quiescent current is approximately 50µA. In the shutdown mode, the maximum supply current is less than 1uA. The AX6607A regulator is able to operate with output capacitors as small as 1uF for stability. The AX6607A series are offering several fixed output voltage types including 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.3V and adjustabl [ ... ]

AX6607A PDF Datasheet Download