On page 14 of the datasheet for the TPS63000, it says "To improve control performance using a feedforward capacitor in parallel to R1 is recommended. The value for the feedforward capacitor can be calculated using Equation 2. And equation 2 states:
Cff = 2.2uS / R1
What are the units? If I use 1M for R1, then 2.2 / 1000000 = 0.0000022. Is that farads, so therefore Cff should be 2.2uF? Or if I use 0.0000022 / 1000000 = 2.2 e-12. So is Cff therefore 2.2pF? Neither of these results make too much sense. 2.2uF seems too large, and 2.2pF seems like it is way too small to have any effect. Board stray capacitance would likely be greater.
I'm assuming that the phrase "to improve control performance" means to improve things like load transient performance, right?
Thanks!
