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WEBENCH® Tools/TPSM53603: TPSM53603 Simulation models

Ahsan Ameen
Prodigy 80 points
Part Number: TPSM53603
Other Parts Discussed in Thread: LMZM33603

Tool/software: WEBENCH® Design Tools

Hi TI team!

I know TPSM53603 simulation models are not available. Now I'm confused for 28V to 3.3V/3A,Which one i should use TPSM53603 or LMZM33603. Can i got simulation models of TPSM53603. I know w.r.t. size TPSM53603 is better. Please guide me with respect to EMI which one is better LMZM33603 or TPSM53603 because LMZM33603 is operating at low frequency than TPSM53603.So I think LMZM33603 is better w.r.t. EMI. Please guide me.

Thanks and regards

  • 0
    TI__Guru 50120 points

    Hi Ahsan,

    If we were to compare the TPSM53603 (Figure 48) radiated EMI with the LMZM33603 (Figure 43) radiated EMI, the assumption that the LMZM33603 has better EMI performance than the TPSM53603 can be made since as you pointed out the LMZM33603 is operating at a lower frequency. 

    There is no way to simulate EMI other than to base the assertion on the datasheet specifications. These radiated EMI result are from the actual standard EVM and tested at a local EMI chamber for accuracy.

    For thermals and size, I would suggest using the TPSM53603. You can also put a LDO at the end of the TPSM53603 to provide a clean output voltage with low noise.

    Here is an app note for reference. 

    Regards,

    Jimmy 

  • 0 in reply to Jimmy Hua
    Prodigy 80 points

    Thank you Jimmy for your reply. But can I access any simulation models of TPSM53603?

    Thanks and regards

  • 0 in reply to Ahsan Ameen
    TI__Guru 50120 points

    There may be some work being done on the TPSM53603 device on WEBENCH designer to accurately match the datasheet component selection recommendation.

    This may be the reason why you are not able to simulate on WEBENCH designer right now. 

    I would give this some time for the internal WEBENCH team to fix. It should be back up soon for simulation purposes.

    Regards,

    Jimmy 

  • 0 in reply to Jimmy Hua
    TI__Guru 50120 points

    Hi Ahsan,

    I haven't heard back from the team yet. I have pinged the again to get a status update on this. If I get any more information,  I'll let you know.

    Regards,

    Jimmy 

  • 0 in reply to Jimmy Hua
    TI__Guru 50120 points

    Hi Ahsan,

    The simulation tool is still in progress and there may be some delay due to the current situation we have. In the mean time I would suggest getting an EVM to test out your use case condition in the lab.

    Regards,

    Jimmy