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TPS23753AEVM-001: TPS23753A circuit modification to change Vout

Leo Chow
Expert 3120 points
Part Number: TPS23753AEVM-001
Other Parts Discussed in Thread: TPS23753

Hi,

I would like to know/obtain information on how to relate the components value with output voltage for the EVM. Let's say I'm expecting Vout of 9V, I would like to know which component to be changed to get other output value. Thanks.

BR,

Leo

  • 0
    TI__Expert 3700 points

    Hi,

    Thank you for your question. 

    To change the output voltage there are several components that need to be changed such as the transformer, FB resistor divider circuitry, sense resistor and output caps. More specifically, these are components T1, R15, R17,R10, C11, C13, R16, C12, R21, C5, C6, C18 in the TPS23753AEVM-001. For the output caps C5, C6, C18, these would need to be adjusted for higher voltage rating as output voltage rises. 

    Best Regards,

    Brett Colteaux

    PoE Product Marketing Engineer

  • 0 in reply to Brett Colteaux
    TI__Expert 3120 points

    Hi Brett,

    Thanks for the response on this, knowing that there's quite a significant amount of components which may affect my final use case & application. I was wondering if there's any resources such as formulas & tools which I can browse through to determine the values of components which I should apply?

    BR,

    Leo

  • 0 in reply to Leo Chow
    TI__Expert 3700 points

    Hi Leo, 

    For resources I recommend reviewing the Designing with the TPS23753 App note which details how to design with TPS23753 and how to choose components for this device. Please feel free to review and let me know if you have any additional questions. 

    Best Regards,

    Brett Colteaux

    PoE Product Marketing Engineer