This part is a kind of semiconductor called BTS621L1.

Function of this product has Smart Two Channel High-Side Power Switch.

Manufacturers : Infineon Technologies AG

Image and pinout :

Some of the text within the PDF file :

PROFET® BTS621L1 Smart Two Channel High-Side Power Switch Features  Overload protection  Current limitation  Short circuit protection  Thermal shutdown  Overvoltage protection (including load dump)  Fast demagnetization of inductive loads  Reverse battery protection1)  Undervoltage and overvoltage shutdown with auto-restart and hysteresis  Open drain diagnostic output  Open load detection in ON-state  CMOS compatible input  Loss of ground and loss of Vbb protection  Electrostatic discharge (ESD) protection  Green Product (RoHS compliant)  AEC Qualified Product Summary Overvoltage protection Vbb(AZ) 43 V Operating voltage Vbb(on) 5.0 ... 34 V channels: On-state resistance RON Load current (ISO) IL(ISO) Current limitation IL(SCr) each bo [ ... ]

BTS621L1 PDF Datasheet Download