What is this component? - Is this a voltage regulator?

[arielomc]

Hello,
The other day I spilled a cup of coffee on my laptop. The PC shut down immediately. 
Then I said to myself: I can do this! 
So, I assumed that there is a short somewhere, so I looked with my multimeter on ground and the positive lead on all the coils. The ones that were close to the CPU or GPU gave me low resistance values ​​(I think that's normal), however, two coils read 0.02 ohm, which is practically a short (right?)
Then, focusing on this area of ​​the PCB, I injected 1VDC capped at 400mA and this is where one particular component became slightly hot. It is one that has the inscription on its silkscreen "AZTP 439" (see photo).
The problem is that I can't find what component it is, or what type of component, nor can I find the motherboard schematics on the internet.

EEVlogers, with your immense wisdom, can you please help me find:
1. Repair my PC
2. Find the IC AZTP 439
3. Find the schematic diagram of the motherboard?

My computer is:
- Samsung Galaxy Book2 pro 360
- Model NP930QED-KA1
- Registration on PCB: BA41-02942B
- PCB Model: MARS2-13

Many thanks in advance to all

Ariel.

[fzabkar]

I'm not confident. In fact I think it's wrong.

AZTP = AZ10EP16VST

https://datasheet.sisoog.com/file/7a657573/datasheet/925f8e38c367f3a59879e012ba3cf9c8553025a9.pdf