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*very* Low voltage regulator

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Discussion in 'General Electronics Discussion' started by Levathian, Jun 27, 2014.

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  1. Jun 27, 2014 #1
    Levathian

    Levathian

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    Jun 27, 2014
    I've been shopping for a voltage regulator that works in a range of .5-1.5 (+/-.5) Volts, but they are not easily found.

    I'm wondering if anyone knows whether they even exist, or possibly how to make one.

    Thank you,

    L.
     
  2. Jun 27, 2014 #2
    Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Welcome aboard.

    What is your input voltage, what is the output voltage? What is the max. current?

    Here's a selection page from Linear Technology, other manufacturers have similar selection pages.
     
  3. Jun 27, 2014 #3
    Levathian

    Levathian

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    Jun 27, 2014
    Ah, thank you. Please excuse me, as this wasn't my area of study.


    Perhaps you could help explain these terms to me? (in, out, supply, dropout, etc)
    we can use the theoretical example of a 3.7V Li-On Battery with 1300mAh

    [​IMG]
     
    Last edited: Jun 27, 2014
  4. Jun 27, 2014 #4
    Harald Kapp

    Harald Kapp Moderator Moderator

    11,160
    2,550
    Nov 17, 2011
    Vin and Vout should be clear. If not we'd have to start discussing the basics of electronics :)
    Dropout is the voltage differential between output and input voltage. This means that the output voltage is always less than the input voltage because the regulator needs some reserve to work. If Vi=Vout, there is no headroom for regulation.
    Isupply is the current the regulator needs to operate. This is not the current that is supplied to the load (output current).
     
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