Please help indentify the chip on Sony WH-1000XM4 battery board

[picouser]

My Sony headphone WH-1000XM4 is damaged by water, and the chip circled is totally ruined. I found this photo by Google but can not read it. By any chance someone here know what chip it is? Thanks in advance!

[petehall347]

https://electronics.stackexchange.co...with-four-pins