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Lenovo Yoga 720-15ikb (LA-E552P) - Burned IC, can not read marking

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    Lenovo Yoga 720-15ikb (LA-E552P) - Burned IC, can not read marking

    This Yoga 720-15IKB (board LA-E552P) has a burned PU501 IC. As there is no schematic or board view, I am guessing that it is some kind of step-down converter for some rail, maybe 3.3v? I can not read the markings to find a replacement.
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  • Answer selected by onoff at Yesterday, 03:18 AM.

    From another Yoga model, believe it is PU601 on the other board.

    RT6585BGQW_WQFN20_3x3
    SY8286BRAC ; may be a drop in replacement for the above - confirm it

    Click image for larger version

Name:	pu601_alternate.png
Views:	20
Size:	187.7 KB
ID:	3590237


    Click image for larger version

Name:	PU601.png
Views:	23
Size:	198.9 KB
ID:	3590236

    Comment


      #2
      From another Yoga model, believe it is PU601 on the other board.

      RT6585BGQW_WQFN20_3x3
      SY8286BRAC ; may be a drop in replacement for the above - confirm it

      Click image for larger version

Name:	pu601_alternate.png
Views:	20
Size:	187.7 KB
ID:	3590237


      Click image for larger version

Name:	PU601.png
Views:	23
Size:	198.9 KB
ID:	3590236

      Comment

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