Provide case details or comments: I'm using the this part as a 52V to 32V, 3A converter. In my application, we use a 0.47uF cap and a 4.7uF cap right at the output of the converter. Then there is some impedance (due to traces, connectors, and ferrite beads) between the remaining capacitance on the output of the converter. Should I set the feed forward cap to compensate for the 4.7uF and .47uF caps or for the total capacitance? All of the capacitors are ceramic.
This question came up dues this statement in section 8.2.2.7 in the datasheet: "if the output capacitor COUT is dominated by low ESR (ceramic types) capacitors, it could result in low phase margin."
Even though all of the caps are ceramic there is still some measurable impedance between the output of the converter and the majority of the capacitance on that line. Basically do I use the total capacitance or just the capacitance that is close to the converter?
