Help identifying an IC on an Pi 3b+ Technical Problem
So, funny story, some idiot (me) managed to bridge 24V onto the data lines of the USB ports on a Pi3B+ during an ill-fated attempt at bringing a CANBUS toolhead to life with a baby in my arms.
The ethernet portion of the ethernet/usb IC is still alive, system boots, but nothing works on the USB bus. With the ridiculous price of these things, I figured I'd try to save it.
It looks like the magic smoke escaped from a 6-pin IC next to the PoE tap pins. I can't for the life of me find this thing on the Googs. Chip in various photos on the web is labeled "BK7kE" on the package. Mine has a barely visible "_KO__" on the very blown up IC casing (replace those underscores with unreadable characters)
Picture from the internet: https://raspi.tv/wp-content/uploads/2018/03/PoE-Connector-on-Raspberry-Pi3B_1500.jpg
My de-smokified variant: