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WEBENCH® Tools: TPS61175QPWPRQ1 DESIGN CONFIRMATION

Sahil Berde
Intellectual 730 points

Tool/software: WEBENCH® Design Tools

Im designing according to the Webench design 

Input: 3.3V

Input maximum: 3.7V

Output: 24V

Output current maximum: 50mA

Max ambient temperature: 85C

Can you review the design to make sure all the models used in this Webench design are all updated? 

Can we get the expected efficiency after building this circuit?

  • 0
    TI__Mastermind 40080 points

    Dear Sir,

    50mA current is very small.

    Webench shows 39uH inductor, but actually you can use 22uH inductor, which is very common.  Because in the light load application, the inductor ripple current ratio can be bigger than 0.2-0.4,  which is normally used in the big load current condition.

    And if possible, make sure the "effective" output capacitance under 24V DC bias  is higher than 5uF, so you should use a big size ceramic cap in order to achieve this.