Resistor and capacitor question

Discussion in 'General Discussion' started by 9thlegion, Sep 24, 2018.

  1. 9thlegion .

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    Hello I'm currently sourcing parts for my N64 portable, making a list and how much it will cost.(got to order before my wife finds out what I'm doing lol) I need a capacitor and resistor for my step down regulator (ph08080). I was wondering if these would work. I have been reading about the subject but Amazon.ca doesn't sell individual amount and I don't want to buy a random kit with crap tons of components I don't need for my current job. Sorry if it's a stupid question.

    https://www.mouser.ca/ProductDetail/603-CFR-50JR-52-2K

    https://www.mouser.ca/ProductDetail/647-UVR1C101MDD
     
  2. jefflongo Broke BitBuilt Staff Member . .

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    If you need generic passives for cheap you should use eBay. To answer your question the capacitor will work, it just needs to have the correct capacitance and a voltage rating for at least whatever your input voltage is. For the resistor I would probably try to get a little closer to the mark. It's better to go a little under than over since the voltage will drop slightly when under load.
     
  3. 9thlegion .

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    So a 1.8k perhaps
     
  4. KaptainTape .

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    Hello! It looks like you are stuck on resistance for TI regulators.

    I believe a 1.8k will work just fine.

    Here is the diagram for calculating resistance needed.

    [​IMG]

    As you can see, 1.8k is lower than 1.89k, thus making this ideal for testing!

    Good luck. :)
     

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