Now going by your find and what I need, this is the nearest QFN type I can see on Ebay, but not sure of the soldering technique nor the exact specs.
RT8243A RT8243AZ RT8243AZQ 8A=EC 8A=EF 8A=xx RT8243AZQW WQFP 3x3-20 IC Chip.
Thank you for this.
I will post pics tomorrow. 4:14am here.
a link -
https://www.ebay.com/itm/5pcs-RT8243...AAAOSwUEVYDyH8
Sorry, I am tired here now, I also saw a same QFN 3x3 mm same dimensions as what I have to replace.