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LM5170-Q1: Current Controller as Buck Only?

Tiffany Greyson
Prodigy 80 points
Part Number: LM5170-Q1
Other Parts Discussed in Thread: LM5170

I am using the Design Calculator for the LM5170 but it appears to pick values that optimize both the buck and boost functions.  I want to optimize only for the buck and go from there (I may not even use the boost feature).  Do you have any advice for how to ignore the boost with the tool?

  • 0
    TI__Guru* 78430 points
    For the inner current loop both buck and boost mode share the same compensation. Buck and boost are independent for the voltage loop. Therefore the optimization of the boost does not affect the optimization of buck. So, simply ignore the boost section if you don't use it.