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LMR36503: SPICE support for Inverting Buck Boost

Antenna_Head
Genius 12780 points
Part Number: LMR36503

Does the SPICE model for LMR36503 support the inverting buck-boost topology?

Thanks, Steve

  • 0
    TI__Expert 4555 points

    Hi Antenna,

    Yes, I can't think of any reason why you can't.

    Please refer to the attached app note for inverting buck-boost topology.

    2477.Working with inverting buck-boost converters.pdf

    Hope this helps!

    Please let me know if you have more questions. And otherwise please close the thread if you think your question has been answered. Thanks!

    Best Regards,

    Ankit Gupta

    Application Engineer

  • 0 in reply to Ankit Gupta95
    TI__Genius 12780 points

    Most buck regulator models don't work in IBB; there are internal nodes tied in such a way as to break when configured that way.

    Usually in a model works for inverting, the name of the model will say so, for instance the LM36015 has a model explicitely calling out inverting.

    I didn't see an inverting model for the LMR36503.

    Thanks, Steve

  • 0 in reply to Antenna_Head
    TI__Expert 4555 points

    Hello Antenna,

    Please email me with your request at a-gupta1@ti.com , I will get you connected with an Application Engineer responsible for this part.

    He might have the model or maybe in the process of building it.

    Please close this thread here, so that TI won't keep monitoring this thread on two separate platforms. Thanks!

    Best Regards,

    Ankit Gupta

    Application Engineer