This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS7H1111-SP: Bode plot in PSpice simulation not matching up.

Part Number: TPS7H1111-SP


I'm comparing the bode plots from the datasheet to the PSpice simulation included in the model. 

I can't seem to match the plots well. What am I doing wrong?

Here is the circuit and some of the overlays.

  • Hi Anthony,

    Keep in mind that the IC model and external schematic lack many of the parasitics that are present when taking real measurements, which can result in the shape of the frequency response curves being somewhat different - especially at the extreme higher and lower frequencies. In the graphs you show, the gain crossovers align very well. The phase margin does not match as nicely, but it is also not suggesting better results than the bench. Regardless, overall frequency response matching is something we have noted for improvement in any future revision that may be released.