Suggest alternate to LM317?

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  • EasyGoing1
    Shock Therapist
    • Sep 2016
    • 977
    • USA

    #1

    Suggest alternate to LM317?

    The only adjustable voltage regulator that I've messed with is the LM317.

    I'm looking for input from people who have any experience with any other adjustable voltage regulators along with any comments as to why you think it might be a better alternative.

    Thank you,
    sigpic
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 30978
    • Albion

    #2
    Re: Suggest alternate to LM317?

    for what?

    the lm317 has a pretty high maximum input.
    whats your input?
    what current do you need?

    Comment

    • EasyGoing1
      Shock Therapist
      • Sep 2016
      • 977
      • USA

      #3
      Re: Suggest alternate to LM317?

      Originally posted by stj
      for what?

      the lm317 has a pretty high maximum input.
      whats your input?
      what current do you need?
      I didn't want to get into the specifics, I was merely looking for alternatives to the LM317 and whether or not anyone had any experience with different adjustable voltage regulators.
      sigpic

      Comment

      • stj
        Great Sage 齊天大聖
        • Dec 2009
        • 30978
        • Albion

        #4
        Re: Suggest alternate to LM317?

        there are lots,
        that's why i asked.

        these days i prefer to play with chinese buck modules - just to avoid heatsinks.

        Comment

        • PeteS in CA
          Badcaps Legend
          • Aug 2005
          • 3579
          • USA, Unsure of Planet

          #5
          Re: Suggest alternate to LM317?

          The LM317 (and the LM337, for negative voltages) is one of those parts that works too well to be obsoleted. Easily adjusted for a fixed voltage or with a pot for adjustable voltages. You can even put a cap across the adjustment resistor that connects to ground if you want to control the output voltage rise.
          PeteS in CA

          Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
          ****************************
          To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
          ****************************

          Comment

          • EasyGoing1
            Shock Therapist
            • Sep 2016
            • 977
            • USA

            #6
            Re: Suggest alternate to LM317?

            Originally posted by stj
            there are lots,
            that's why i asked.

            these days i prefer to play with chinese buck modules - just to avoid heatsinks.
            I do too ... but you can't vary the voltage with a microcontroller with one of those. With an adjustable regulator, you can use a digital pot and vary the voltage as needed.
            sigpic

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 30978
              • Albion

              #7
              Re: Suggest alternate to LM317?

              i'm not so sure about that claim.

              Comment

              • EasyGoing1
                Shock Therapist
                • Sep 2016
                • 977
                • USA

                #8
                Re: Suggest alternate to LM317?

                Originally posted by stj
                i'm not so sure about that claim.
                I've done it.
                sigpic

                Comment

                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 30978
                  • Albion

                  #9
                  Re: Suggest alternate to LM317?

                  i meant not being able to tie an mcu to a buck module

                  Comment

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