This part is a kind of semiconductor called XL6012.

Function of this product has 180KHz 60V 6A Switching Current Boost DC/DC Converter.

Manufacturers : XLSEMI

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Some of the text within the PDF file :

Datasheet 180KHz 60V 6A Switching Current Boost DC/DC Converter Features „ „ „ „ „ „ „ „ „ „ „ „ XL6012 General Description The XL6012 regulator is a wide input range, current mode, DC/DC converter which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. The XL6012 built in high voltage N-channel power MOSFET and fixed frequency oscillator, current-mode architecture results in stable operation over a wide range of supply and output voltages. The XL6012 regulator is special design for portable electronic equipment applications. „ „ „ „ „ Wide 5V to 48V Input Voltage Range Maximum Boost Output Up to 60V Positive or Negative Output Voltage Programming with a Single Feedback [ ... ]

XL6012 PDF Datasheet Download