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How we can charge a 5V device monitoring the input voltage in real time

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testtest:
if it can help here are the gerber files

testtest:
This is a file where you can see the complete design that the machine sees when making the tile. Like this

[attachimg=1]

DavidAlfa:
Looks ok in the gerbers...

So have you:
- Ensured there're no shorts, specially under the QFN package?
- Shorted U1, pins 1-3,?
- Shorted R11?
- Connected a slightly higher voltage than Vmin, ex. 3V at VIN?

What are you getting at the output?
Have you checked SW with a scope to see if it's doing something?

testtest:
Hi David

We have test all the part in your list and they seems fine
regarding the last 2 questions:
What are you getting at the output? the voltage output is exactly the same as the input, like is bypassing the IC
Have you checked SW with a scope to see if it's doing something? We are trying to find someone with an oscilloscope

DavidAlfa:
Are you sure you got the fixed voltage version?
The datasheet isn't clear about the markings.

Vref is 0.9V in the adjustable version, it would explain why it bypasses the input.
Is the same happening when using the resistor feedback to OUTS pin?
Have you thoroughly checked their values?

Edit: The old Micrel datasheet is complete:
https://dtsheet.com/doc/1341016/mic2876---micrel

76H = Fixed 5.25Vout

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