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Choice of regulator

Discussion in 'Electronic Basics' started by Captain Blammo, Apr 4, 2005.

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  1. I've got some batteries out of an old camcorder that are 6v and can give out
    plenty of current, but the 7805's I'm using need 7v, and I don't want to
    overvolt the stuff being powered at all, so I need a regulator of some sort.

    How can I regualte 6v down to 5v? Are there any cheap/small regulators that
    can do that? If so, please let me know! If there's one that can produce both
    5v and 3.3-3.5v at the same time, that'd be even better. I'm not well versed
    in components, and 7805's are all I've ever used.

    Thanks for any recommendations!

  2. Lord Garth

    Lord Garth Guest

    Try the needs less overhead. You might also look a number of
    switching regulators on the Maxim-ic page as well as TI.
  3. News Me

    News Me Guest

    Look at LDO (low drop out) regulators such as the LM2940CT series.
    These claim to have a maximum drop out voltage of 1.0V over the entire
    temperature range and typical dropout of 0.5V at room temperature. They
    are rated for 1.0A. There are other parts with 3.3A and 5A ratings, but
    the dropout on those are greater than 1V.

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