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Building a DC to DC voltage regulator

  1. Jul 2, 2008 #1
    Could anybody please assist me.

    I need to regulate 12 volts dc from a car battery down to 1.24 volts dc yet I still need to be able to draw 12 - 15 amps. Ideally I would like to be able to adjust the voltage. Does anybody have any ideas how I will be able to achieve this & if so, what components will I need?

    Last edited: Jul 2, 2008
  2. jcsd
  3. Jul 2, 2008 #2


    User Avatar

    Staff: Mentor

    Here's a 20A buck regulator chip and application info from National Semiconductor:

    http://www.national.com/mpf/LM/LM2746.html [Broken]
    Last edited by a moderator: May 3, 2017
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