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

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  • onoff
    New Member
    • Mar 2017
    • 7
    • Portugal
    #1

    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 03-11-2025, 03:18 AM.
      mon2
      Badcaps Legend
      • Dec 2019
      • 13849
      • Canada
      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: 37 Size: 187.7 KB ID: 3590237


      Click image for larger version Name: PU601.png Views: 43 Size: 198.9 KB ID: 3590236
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        • mon2
          Badcaps Legend
          • Dec 2019
          • 13849
          • Canada
          #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: 37 Size: 187.7 KB ID: 3590237


          Click image for larger version Name: PU601.png Views: 43 Size: 198.9 KB ID: 3590236
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