Built in DC-DC Converter in a microcontroller

Discussion in 'Embedded Systems and Microcontrollers' started by nickatnite, May 22, 2009.

  1. nickatnite

    Thread Starter Member

    Mar 31, 2009
    10
    0
    hello..
    I have a built-in DC-DC Converter inside the microcontroller.
    So basically it takes in 0.9v and outputs up to 3.3v, according to the schematics.:eek:

    But I can't seem to figure out how to get it to working, since it's a recent technology ( i think it came out last year ) . :rolleyes:

    How do I make it work ?:confused: Do i need to configure it in the program itself .. , the reason Why I say that is because I see a some of registers assigned to voltage regulator and DC-DC converter , I am pretty new to this stuff. :p
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Can you tell us what the part number of the device is?


    hgmjr
     
  3. HarveyH42

    Active Member

    Jul 22, 2007
    425
    5
  4. Papabravo

    Expert

    Feb 24, 2006
    10,140
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    I'd believe the other way around. You give it 3.3V and it makes the 0.9 for the core. Many OLED and LCD controllers work that way.
     
  5. DrNick

    Active Member

    Dec 13, 2006
    110
    2
    Papabravo:

    If nickatnite is referring to the AVR, it does have an integrated boost converter so that it can run directly off of a battery although it has a 3.3V core voltage.
     
  6. Papabravo

    Expert

    Feb 24, 2006
    10,140
    1,790
    So I guess it could go either way. What kind of inductor does that AVR DC-DC converter require?
     
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