What is the equivalent of this EQ! chip in the attached image?

[tomay3000]

Hello,
I need to buy the red framed chip in the attached image from Aliexpress.

But I don't know any of its equivalents.

Could you please tell me of any equivalent of it.
TIA.

NB: It is from an HP ProBook 440 that has stopped working.

[Nominal Animal]

Looks very much like a Richtek RT8223MZQW power supply controller IC.

Unfortunately, I have no idea where to get one, or an equivalent; nor am I even completely sure that is what the chip is; sorry.

[tomay3000]

Indeed, it is the power related one.

From this website:
https://alexlaptoprepair.com/en/isl-maxiam-tps-ene-ite-bq-laptop-ic-equivalent/

They say it should be : RT8223MGQW

I think it is this one: https://www.aliexpress.com/item/1005001875405167.html

Corect me if I am wrong.

[Nominal Animal]

They say it should be : RT8223MGQW

As the datasheet says, the difference between RT8223MGQW and RT8223MZQW is in the lead plating only; former (G) is "Green (lead and halogen free)", and the latter (Z) is "ECO (ecological, lead and halogen free)".  Electrically, they should be perfectly equivalent and interchangeable; the difference only matters to those who manufacture lots of devices using these chips, I think.

I think it is this one: https://www.aliexpress.com/item/1005001875405167.html

I think so too, assuming it is a genuine part and not a reject/fake.  (As often mentioned here, a lot of ICs sold on AliExpress and eBay are fakes.)

Please note that I am only a hobbyist, and I might be wrong!

After you desolder the old chip, I personally would check the supply voltage and ground pads, if possible, before soldering the replacement chip.