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Discussion in 'Electronic Design' started by AJ, Feb 27, 2007.

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  1. AJ

    AJ Guest


    I have been prototyping a TI TPS63000 Buck-Boost converter and have set up a
    circuit as per the datasheet but I am finding that the quiescent current
    with no load is about 2.5mA with a 4V input and a 3.6V output where the
    datasheet states that it should be < 50uA. Has anyone else had any
    experience with these particular devices?

    Here is a link to the datasheet for anyone interested...

    Best regards,

  2. mpm

    mpm Guest

    Sorry, not familiar with that one.
    You might look at the Enable and make sure it's driven completely to
    the rail.
    Buck/Boost regulators sometimes pull extra juice when not fully
    enabled (or disabled).

    Good luck.
  3. AJ

    AJ Guest

    Thanks anyway but I have it all sorted now. I ended up bringing out the old
    etching tank and making a PCB so I could easily play with the EN and PS/SYNC
    pins. It turns out that the PS/SYNC pin needs to be low to achieve the
    advertised <50uA quiescent current.

    Best regards

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