3.3v / 5v TPS51225B vs TPS51225C

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  • delphi_firebird
    Member
    • Mar 2015
    • 36
    • France

    #1

    3.3v / 5v TPS51225B vs TPS51225C

    Hello,

    I repaired a dead Lenovo L380 by replacing 3.3v/5V TPS51225B chip with TPS51225C that i recovered from a donor board .
    It works but I'm not expert enough to tell if this is good or not ?
    Can any body tell me what is the difference between the two and if the replacement is good ?

    this is a link for the datasheet
    https://cdn.badcaps-static.com/pdfs/...46e574617f.pdf

    thank you
  • mcplslg123
    Badcaps Legend
    • Jun 2015
    • 7262
    • india

    #2
    Re: 3.3v / 5v TPS51225B vs TPS51225C

    51225B-5V LDO is not Always ON
    51225C-5V LDO is always ON

    3V LDO is always on in both the IC.

    The replacement in your case will work fine.

    Comment

    • delphi_firebird
      Member
      • Mar 2015
      • 36
      • France

      #3
      Re: 3.3v / 5v TPS51225B vs TPS51225C

      Originally posted by mcplslg123
      51225B-5V LDO is not Always ON
      51225C-5V LDO is always ON

      3V LDO is always on in both the IC.

      The replacement in your case will work fine.
      You comforted me, thank you very much for the answer

      Comment

      • Jeroentje
        Senior Member
        • Dec 2017
        • 82
        • Nederland

        #4
        Re: 3.3v / 5v TPS51225B vs TPS51225C

        do you have a schema for it ?

        Comment

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