Whatsminer M21S boost circuit IC or chips

[grayman1]

Hi
I would like to know that what’s is the model of this chip.
The numbers which are printed on chipset are 3750
1809 or maybe1808
It has been located in boost circuit as I have marked by white arrow in following image.
https://ibb.co/Qfxns0J
I couldn’t find any information on internet.

[BitMaxz]

Can you take the actual image? the link image above is not clear but if you have a phone adjust your rear camera to high settings.
Must be this


Then take a picture of the board focus on the "boost circuit" if you can't still see the exact model of that IC try to clean that part with alcohol or thinner and take a pic again.

If it's still not clear then you might need magnifying glass or microscope.


I tried to search all of those numbers in Google and most chips that I found are 4 pins, not the 3 pins.

[grayman1]

I have find this two photo in my phone that is attached link at the end of content and I have tried by microscope to find number.
The  first number at first line is clear and it is 3750
The second number at second line is partly fogged and I guess it is 1809 or 1808.
I’ve googled both number and I didn’t find 6 pin on the internet therefore I have posted this issue to help to find the chip information or any replacement chip.
The act of circuit has written on the image and it is conver 13v to 17v.

https://i.ibb.co/5YpzQ9S/345-BE9-C8-7975-454-F-A74-F-3-C9-C8-FEFDDA9.jpg
https://i.ibb.co/VMMMnnz/0-B4-EE6-C9-A39-C-4-F69-90-FE-9-D4-D54430667.jpg