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TPS73801-SEP: TPS73801 simulation model

Raul Carrillo
Prodigy 50 points
Part Number: TPS73801-SEP
Other Parts Discussed in Thread: TPS73801,

Hello,

I am working with TPS73801 in my design but I haven't found simulation model in TI site. I would know if someone could help me to simulate device behavior to get stability analysis, phase and gain margin.

Kind regards and thanks in advance.

  • 0
    TI__Expert 7055 points

    Edit: I had previously stated incorrectly that there was no model for the TPS73801-SEP. This was incorrect. The correct guidance can be found in the answer below highlighted in green.

    Hi Raul,

    The model for the TL1963A could be used as a rough stand-in. 

    There are some electrical differences between the parts so it won't be a perfect replacement and I wouldn't recommend it for worst case analysis, but it should be adequate for proof-of-concept simulation.

    Thanks,

    Sarah

  • 0 in reply to Sarah Koch
    Prodigy 50 points

    Hi Sarah,

    Thanks for your reply, i will use the alternative model as an approximation for initial stability status in the design. Unfortunately I need a valid model for worst case analysis.

    Is there any equivalent model to TPS73801 with simulation model available?

    Thanks in advance

    Raul

  • 0 in reply to Raul Carrillo
    TI__Expert 7055 points

    Hi Raul,

    Apologies, I had previously referenced the wrong product page. Can you clarify whether you are using the TPS73801 or TPS73801-SEP? The TPS73801-SEP does have a SPICE model available.

    You can find it on the TPS73801-SEP product page under the Design Tools & Simulation tab.

    I took a look at the file and there is one thing to note: PSpice has a problem recognizing lib files when the lib file extension is capitalized. When you download the model file, please make sure to rename it so that the ".LIB" extension is all lowercase instead of uppercase.

    Thanks,

    Sarah

  • 0 in reply to Sarah Koch
    Prodigy 50 points

    Hi Sarah,

    Yes, we are using  TPS73801-SEP. Thank you for your support. I think that with this model I can perform the analysis.

    Thanks

    Raul