DC-DC converter

Discussion in 'General Electronics Chat' started by balu.anchans, Dec 5, 2011.

  1. balu.anchans

    Thread Starter New Member

    Jun 3, 2011
    hello all
    i am having 28v 6A source and i want to convert it to 5v 2A
    pls help me with some suggestions
    thanks in advance
  2. Wendy


    Mar 24, 2008
    Welcome to AAC!

    A thread belongs to the OP (original poster). Trying to take over someone elses thread is called hijacking, which is not allowed at All About Circuits. I have therefore given you a thread of your very own.

    This was split from Electronics AC/DC + Logic Cheat Sheets (Final Edition)
  3. steveb

    Senior Member

    Jul 3, 2008
    As your title shows, you have already considered the most logical solution. A DC to DC converter, and in particular a buck converter, would seem to work well. You might see 85 percent power conversion efficiency.

    For the sake of completeness, you could also use linear regulation techniques, but the efficiency would only be 15 percent and getting rid of that heat is a problem.

    Your post is very vague. Are you trying to buy or build your solution? You should be able to buy a 24 V to 5 V buck converter off the shelf. Most of these will work with 28 V in.
  4. bountyhunter

    Well-Known Member

    Sep 7, 2009
    Simple switcher like LM2576-5 is easiest/cheapest way.