I managed to burn this part when connecting 4 cells to it. I am unsure if voltage difference between the cells killed it (it was up to 0.1V), or the part was already dead.

I have one more device (small air compressor with a battery) with the same board revision, so I took a photo of the component.



The code reads
1068F
1702

 

I managed to burn this part when connecting 4 cells to it. I am unsure if voltage difference between the cells killed it (it was up to 0.1V), or the part was already dead.

I have one more device (small air compressor with a battery) with the same board revision, so I took a photo of the component.

View attachment 286901

The code reads
1068F
1702

Hi I,
Could it be this:
https://www.microchip.com/en-us/product/MCP1702
C

 

Hi I,
Could it be this:
https://www.microchip.com/en-us/product/MCP1702
C

Thank you for your reply, but I don't think this is the SMD I am trying to identify. The dot is in a different position. Also, the device uses 4 Lifepo4 cells, and the maximum current is around 5A.

After desoldering it, I noticed the SMD has a pad on the bottom.

 

Can you swap the good I.C onto the suspect board?
Good luck.......