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Variable +- supply from single

Discussion in 'Electronic Design' started by Stretto, Jun 6, 2011.

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  1. Stretto

    Stretto Guest

    Are there any simple DC/DC converters that can produce equal +- rails from a
    single supply? Looking to take anywhere from 3V to 30V and produce a
    variable + and - from 3V to 30V. I'm looking more for a simple monolithic IC
    that is efficient for small current draws between 1mA and 50mA.

    I've seen a few negative rail generator IC's but they are extremely
    inefficient at low currents(20-30% at 1mA). Since this is a battery supplied
    circuit I'd like to make it as efficient as possible.
  2. Rich Grise

    Rich Grise Guest

    Have you tried googling for any of this stuff?

    In a new browser tab or new browser window, go to

    in the search window, enter "DC/DC Converter Bipolar Output" with or
    without the quote marks, and something will show up; from there, you
    can get a head start on your homework.

    Good Luck!
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