You might be able to use some alcohol to clean the flux from the ic and then you might make out the numbers, Also what is it from? sometimes that can help id the chip.
How many pins does it have? It looks like only 4
I believe I found the ic, It is a AUR9705. It seems U8 is setup as a 3.3v regulator (based on R65 & R67)
I would guess U7 would be 1.5v (check the values of R64 & R66)
Looks like AP3428A could be the replacement
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