This part is a kind of semiconductor called AMC7135.

Function of this product has 350mA ADVANCED CURRENT REGULATOR.

Manufacturers : ADD Microtech

Image and pinout :

Some of the text within the PDF file :

AMC7135 www.addmtek.com 350mA ADVANCED CURRENT REGULATOR DESCRIPTION FEATURES The AMC7135 is a low dropout current regulator rated for 350mA constant sink current. The low quiescent current and low dropout voltage is achieved by advanced Bi-CMOS process. „ „ „ „ „ „ „ „ 350mA constant sink current. Output short / open circuit protection. Low dropout voltage. Low quiescent current Supply voltage range 2.7V ~ 6V 2KV HBM ESD protection Advanced Bi-CMOS process. SOT-89 and TO-252 package TYPICAL APPLICATION CIRCUIT APPLICATIONS „ Power LED driver Supply Voltage 2.7V ~ 6V CBP OUT VDD AMC7135 GND PACKAGE PIN OUT VDD GND OUT SOT-89 TO-252 (Top View) VDD GND OUT IOUT PK ORDER INFORMATION SOT-89 3-pin SJ TO-252 3-pin 340-380mA AMC7135PKF AMC7135SJF 300-340m [ ... ]

AMC7135 PDF Datasheet Download