Voltage regulator – cap. discrepancy

Home Forums Botanicalls Community Voltage regulator – cap. discrepancy

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
  • #1457

    The Botanicalls schematic on SparkFun shows a 100u an a 10u on the in and out of the voltage regulator, respectively. The datasheet for the 3.3V voltage regulator (see Figure 4 at http://www.sparkfun.com/datasheets/Components/LD1117V33.pdf) shows a 100n and 10u on the in an out, respectively. Can anyone explain the discrepancy? Thank you!


    Rob Faludi

    These are just bypass caps, so the values aren’t too critical. The larger cap will filter out lower noise frequencies, possibly most useful since there’s generally going to be a regulated A/C power supply connected to the regulator. However feel free to substitute other values if you prefer.

Viewing 2 posts - 1 through 2 (of 2 total)
  • You must be logged in to reply to this topic.

New kits are here!


Pothos Plant Tweets

    Flickr Feed

    More photos or video tagged with botanicalls on Flickr