I read “2603 52k c8df” currently no clue. Power Manager? According to this list there are the following chip suppliers:
Taiwan Semiconductor (TSMC) Integrated Circuits
FocalTech Integrated Circuits
Texas Instruments Integrated Circuits
Synaptics Integrated Circuits
Skyworks Integrated Circuits
Samsung Integrated Circuits
RICOH Integrated Circuits
Qorvo Integrated Circuits
Qualcomm Integrated Circuits
Infineon Integrated Circuits
Fairchild Integrated Circuits
Maybe the list is incomplete or it’s not even an IC.