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Vintage 6 volt car, would like to bump it down to 5 volts for smartphone.

Discussion in 'General Electronics Discussion' started by marksch, Mar 16, 2013.

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  1. marksch


    Mar 16, 2013
    I have a problem Im looking for some help on. I have a old VW bus that is still 6 volt... I want to be able to charge my phone with it but dont want to fry it by connecting it directly to the system. I tried making a 7805 circuit with a couple 10uF capacitors (radio shack) but that only produced 4.7v or so which didnt power the phone.

    Can anyone recommend a way to do this?
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
  3. CocaCola


    Apr 7, 2012
    The L4940V5 is another one of those LDO options...
  4. marksch


    Mar 16, 2013
    Awesome, thanks for the help. I've got 1 of each on order.
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