The best way to identify the chip is to download the motherboard schematic PDF from either laptop schematics in US or realschematic in UK/EU. Cost about $20usd. However, be forewarned that the chip looks like a thru-hole mount, not surface mount. These aren't easily replaced with ordinary pencil tip tools. Furthermore, a chip failure like this usually heralds other component failures that might only be detectable with diagnostic equipment. So replacing the chip alone probably won't resolve the issue. Mouser or DigiKey are the best bets for purchasing discrete chip components like this if it can be fully identified but seems to be related to component chip GP 9PC.

Since brand new replacement mainboards are less than $100 , I think it might save you time, hassle & money simply replacing the mainboard.. Google search keywords 'cb5-312t' 'motherboard' 'aliexpress' for replacement vendors and options who ship to your location.

Just as an addition to the above, that GP9PC looks like a "P-channel enhancement-mode power MOSFET for load switching?" and specific to Acer and your laptop, unless you have a spare mobo of the same or similar that has this exact chip? Then you can use that same chip, otherwise It should only be diagnosed and removed/replaced by an experienced technician that has these parts and/or can get this same part for your laptop, but and most importantly, he/she has the experience to diagnose fully why this chip shorted/burned out or if it's just a faulty chip? As just removing this chip could fix the problem or do nothing (maybe???) or replacing this chip could do nothing also and your laptop will still have the same problems? As your laptop might have other issues that have caused this chip to burn out. All this can only be done by an experienced technician that does this sort of work and that has the appropriate tools to remove and replace this microscopic chip.

If you haven't got experience of testing the exact specs of this chips voltage/Ohm/Amps ratings and/or the tools to take it out/replace this chip "don't attempt to do this job yourself'” as you will damage this chips mobo circuitry traces which will cause more damage and it will be harder and more expensive to fix.

Btw, if you have the experience of knowing what this chip voltage/Ohm/Amps ratings are, then look at a similar chip here at "ALLDATASHEET.COM" and search their database and see if you can find a replacement GP9PC chip on this site, as they do have allot of chips under "P-channel enhancement-mode power MOSFET" titles that could be a replacement for the Acer GP9PC, so do the research, if you want to really find a none oem chip.

Note: the below chip is part #: AP2603GY, and they are available online, but this may NOT be the chip that you are after? Below is the specs of that chip, but I can't guarantee you that the below chip is the exact GP9PC chip, as you need a multimeter to figure out the GP9PC chips specs (btw use the other GP9PC chip so that you can get the exact chips specs from that) as they are the same. Good luck and hope this helps you out somehow, as I know its not an 100% solution😀

You might try sending the image of the chip cluster to DigiKey or Mouser with a note that it seems to be associated with the chromebook's charging port. Years ago a Mouser tech was able to identify a popped chip on a PC-XT cloneboard for me from a Polaroid camera snapshot that I snailmailed to them. Chip cost less than a buck for one. But shipping & handling was a lot more. 🙂