I just compared the printing on the chip with the one from the iFixIt teardown of the iPad:
New iPhone:
33950084 K4X2G643GE YN602473 APL0398 BSA1AO6A
iPad:
N26CGM0T 1007 APL0398 33950084 YNL184A2 1004 K4X2G643GE
I formatted the identical parts. Maybe this is the same SOAC that is in the iPad?!
Excellent work.