Lenovo LOQ - LA-N221P Rev 1.0 Schematics or PU301 ic code?

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  • husnu16
    Senior Member
    • Jun 2020
    • 113
    • Türkiye

    #1

    Lenovo LOQ - LA-N221P Rev 1.0 Schematics or PU301 ic code?

    Hello my precious masters;
    Lenovo LOQ - LA-N221P Rev 1.0 I need the code/model number of the PU301 integrated circuit on this mb. The integrated circuit is burnt and cannot be read. Can you help me with this?
  • husnu16
    Senior Member
    • Jun 2020
    • 113
    • Türkiye

    #2
    Hello, is there anyone who can help with this?

    Comment

    • pooya_pm
      Badcaps Veteran
      • Jan 2021
      • 251
      • iraq

      #3
      I NEED TOO

      Comment

      • anshad
        Badcaps Veteran
        • Nov 2010
        • 249

        #4
        Originally posted by husnu16
        Hello my precious masters;
        Lenovo LOQ - LA-N221P Rev 1.0 I need the code/model number of the PU301 integrated circuit on this mb. The integrated circuit is burnt and cannot be read. Can you help me with this?
        I think it's a SY8386B chip - 3.3v fixed voltage converter. Datasheet isn't available and hence i can't provide one. There is datasheet for SY8386R but the pin out has many differences. You may find another schematic which uses this IC and cross check to match. However, a short in 3.3v can kill the PCHA/SoC easily. Check the coil resistance first for short.

        Comment

        • husnu16
          Senior Member
          • Jun 2020
          • 113
          • Türkiye

          #5
          Hello master, thank you for your answer. There was a pch short situation on the device. We made the necessary repairs but we are stuck at pu301. If I can find out what this is, I can move forward.

          Comment

          • husnu16
            Senior Member
            • Jun 2020
            • 113
            • Türkiye

            #6
            I found out what integrated is. Here it is. Thanks to everyone who tried to help.

            YQxxx
            SY8388BRHC


            ​High Efficiency Fast Response 10A, 23V Input Synchronous Step Down Regulator.

            Comment

            • Dann4419
              New Member
              • Apr 2025
              • 1
              • Venezuela

              #7
              SY8388BRHC_QFN16

              Comment

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