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TPS43060: Which is reliable WEBENCH and Calculation Tool(SLVC471) ?

Part Number: TPS43060
Other Parts Discussed in Thread: WEBENCH-CIRCUIT-DESIGNER

Dear Specialists,

My customer is considering TPS43060 and has a question.

I would be grateful if you could advise.


I have a question about the result between WEBENCH and Calculation Tool(SLVC471)

I ran a simulation with WEBENCH from TPS43060 Product Folder under the following conditions, but the design could not be created.

When using WEBENCH-CIRCUIT-DESIGNER, simulation results were obtained using an ideal FET. In some cases, this result could not be obtained.

22_26Vin 34Vout 15.3Aout WBDesign142.pdf

What is the cause?

Input: DC 22V - 24V
Output: 30V at 16A
Temperature: 30°C

On the other hand, we were able to obtain calculation results using the Calculation Tool (SLVC471).

TPS43060 24Vin 34Vout15.3Aoutput.xls

Is this result feasible?


I appreciate your great help in advance.

Best regards,


  • Hello Shinichi,

    Thanks for reaching out to us via e2e.

    Webbench Designer is a good tool to start with, especially if you have no idea, which device to use.
    On the other hand, the calculations are often too complex, so that Webbench Designer is running into troubles.

    For a proper calculation of the external components we definitely recommend using the Quickstart Calculators (whenever available).
    Those deliver very reliable results.

    Best regards,

  • Hi Harry,

    Thank you for your reply.

    I understand.

    WEBENCH is suitable for confirming the circuit easily

    Calculation tool is suitable for checking circuit characteristics depending on external components.

    Regarding this design, I'll recommend the customer to use calculation tool.

    I appreciate your great help and cooperation.

    Best regards,