This part is a kind of semiconductor called MIP2K30MS.

Function of this product has Silicon MOS FET.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

MIP2K30MS Silicon MOS FET type integrated circuit  Features  Built-in jitter function  Built-in charge protection circuit Built-in overheating, loadshorting and overvoltage protection circuits  Applications  Chargers (for DSC, etc.)  AC adapter  Absolute Maximum Ratings Ta = 25°C±3°C Parameter Symbol Rating Unit DRAIN voltage VD - 0.3 to +700 V VCC voltage VCC - 0.3 to +45 V VDD voltage VDD - 0.3 to +8 V Feedback voltage VFB - 0.3 to +8 V Feedback current IFB 500 mA CL pin voltage VCL - 0.3 to +8 V CL pin current ICL 150 mA Output peak current * IDP 1.5 A Channel temperature Tch 150 °C Storage temperature Tstg -55 to +150 °C Note) *: The guarantee within the following pulse width. Leading edge blanking delay + Current limit delay to [ ... ]

MIP2K30MS PDF Datasheet Download