Buck boost converter IC with DIP package

Discussion in 'The Projects Forum' started by kewzj, Nov 18, 2013.

  1. kewzj

    Thread Starter New Member

    Oct 30, 2013
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    Does anyone knows which companies produces buck boost converter IC with DIP packages? I've searched for certain companies such as Microchip, Texas Instruments and Linear Tech but they do not provide such IC with DIP packages.
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,771
    971
    There are plenty.. simply hit up digikey.com or similar and use their search

    here is one..
    TI MC34063AP
     
  3. t06afre

    AAC Fanatic!

    May 11, 2009
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    1,222
    They are not that common, but you can find some. I also support the suggestion to serach some of the major components vendors like digikey and filter by package.
    Here is some MC33063AP1G,MC34063AP1G,LT1072CN8#PBF, and LT1082CN8#PBF
     
  4. Dodgydave

    Distinguished Member

    Jun 22, 2012
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  5. abjadi

    New Member

    Mar 28, 2014
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    u can use LM2576, it has 5 pins
    max 3A
     
  6. AnalogKid

    Distinguished Member

    Aug 1, 2013
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    1,251
    There are two different uses of the term "buck-boost". The first applies to parts like the MC34063. You can run it in a buck configuration and trick it into generating a negative voltage. The datasheet has an example for turning +5V into -12V. The regulator thinks it is turning +17V into +12V, a buck circuit. But 12 is greater than 5 (not counting polarities), a boost circuit. This is an old trick, and old parts still are available in DIP.

    The other use of the term is for a regulator that shifts from a true buck config to a true boost config seamlessly as the input changes. For example, making a constant +5V out as the input changes from +6V to +3V, a common problem for battery powered systems. The chips for this are newer, and many are not available in DIP.

    So, which is the one you want?

    ak
     
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