Looking for a DC-DC step down converter module to replace a 0.75v_ALW output and enable pin

Collapse
This topic has been answered.
X
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • questore
    Badcaps Veteran
    • Dec 2015
    • 572
    • csongrád
    #1

    Looking for a DC-DC step down converter module to replace a 0.75v_ALW output and enable pin

    Hello Everyone,
    I need your help, maybe you have know where to buy a replacement.
    I have a NM-D562 laptop motherboard that has a burned 0.75_ALW converter. (the layers and the pins also burned so i dont want to restore it but i need a replacement)
    I have checked with lab power supply output (0.77V) laptop works, so i need a DC-DC module that can do its job.
    According to schematic datasheet what i need on 0.75V_ALW:

    Vout=0.75V±37.5mV
    Vset=0.752V±1.46%
    Vref=0.6V
    TDC=4A
    OCP=9.5A TYP=10.5A MAX
    OVP=(1.15~1.25)*Vout
    UVP=(0.6~0.7)*Vout​

    I'm nut sure if It needs an Enable pin because its an ALW line so if everything is ok then no problem.

    Tags: None
    • Answer selected by questore at 11-11-2025, 03:30 PM.
      questore
      Badcaps Veteran
      • Dec 2015
      • 572
      • csongrád
      Measuing with Lab PSU turned out that only max 700 milliamps is needed at full stress on this line.
      So I can safely order a mini modul that has an enable pin and provide up to 3 Amps output.
        • Selected Answer

        Comment

        • questore
          Badcaps Veteran
          • Dec 2015
          • 572
          • csongrád
          #2
          Measuing with Lab PSU turned out that only max 700 milliamps is needed at full stress on this line.
          So I can safely order a mini modul that has an enable pin and provide up to 3 Amps output.
            • Selected Answer

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31278
              • Albion
              #3
              do the ajustable modules go down under a volt?
              in a stable way i mean.

                Comment

                • questore
                  Badcaps Veteran
                  • Dec 2015
                  • 572
                  • csongrád
                  #4
                  Originally posted by stj
                  do the ajustable modules go down under a volt?
                  in a stable way i mean.
                  There is a lot of mini modules that is capable of going down until 0.8v but only a few that is going lower with an enable pin. And i want to go with 0.77v to be safe.

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    Working...