CompactFlash, SD, MMC, USB flash storage. Anything that does not have moving parts inside.
August 6th, 2018, 11:20
After disabled MP2162 current is still not stable and still changing in every points. I marked capacitors connected to 1.5V point.
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August 6th, 2018, 17:24
When you grounded the enable pin of U6, did its output remain at 0V? If not, then it must be faulty.
Otherwise I'm out of ideas.
August 7th, 2018, 2:30
No, after grounded enable pin still showing changing current between 0,1 to about 2,2V but not 0V.
August 7th, 2018, 2:47
Either U6 is faulty, or there is an open feedback resistor. See R1 and R2 in the application circuit.
August 7th, 2018, 3:09
sorry where is resistor R1 and R2 ?
August 7th, 2018, 3:28
See attachment.
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- Reg_1V5_resistors_feedback.jpg (62.99 KiB) Viewed 5900 times
August 9th, 2018, 10:23
Thank you fzabkar for your help. Unfortunately I don't resolved this case.
August 10th, 2018, 14:14
This case probably can be solved, so hope you redirect client to another lab.
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