5vdc to 3.8vdc step down

Discussion in 'General Electronics Chat' started by StealthRT, Mar 29, 2013.

  1. StealthRT

    Thread Starter Active Member

    Mar 20, 2009
    223
    0
    Hey all i am in need of some help with stepping down a 5vdc to 3.8vdc so that i can power my phone.

    The battery that's powering the phone is rated at 3.8vdc 1730mAh 6.57Whr.

    What all would i need in order to step down from the 5vdc to around the 3.8vdc mark?

    The USB 5vdc is rated at 5.1vdc 2.1A.

    Any help would be great! :)
     
  2. upand_at_them

    Active Member

    May 15, 2010
    246
    29
    A Low Dropout adjustable regulator.
     
  3. bountyhunter

    Well-Known Member

    Sep 7, 2009
    2,498
    507
  4. spinnaker

    AAC Fanatic!

    Oct 29, 2009
    4,866
    988
    Most cell phones will charge from. 5vdc. I suggest you check your documentation.
     
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