This part is a kind of semiconductor called FP6298XR-G1.

Function of this product has Low-Noise 4.5A Step-Up Current Mode PWM Converter.

Manufacturers : Feeling Technology

Image and pinout :

Some of the text within the PDF file :

FP6298 Low-Noise 4.5A Step-Up Current Mode PWM Converter General Description The FP6298 is a current mode boost DC-DC converter. It is PWM circuitry with built-in 0.08Ω power MOSFET make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current. The FP6298 is available in the SOP-8L(EP) package and provides space-saving PCB for the application fields. Features  Adjustable Output up to 9V  Internal Fixed PWM frequency: 500KHz  Precision Feedback Reference Voltage: 0.6V (±2%)  Internal 0.08Ω, 4.5A, 12V Power MOSFET  Shutdown Current: 0.1μA  Over Te [ ... ]

FP6298XR-G1 PDF Datasheet Download