Post Go back to editing

Different results for FRA using LTpowerCAD and LTspice, Specifically LT8643S and LT8390

Category: Software


I have a different results for LT8643S based step-down converter.

LTpowerCAD report closed loop bandwith 100kHz, LTspice 130kHz.
Which of them can be trusted?

See attachment, please.

Anyway... LTspice FRA settings is very poorly documented, I can not find any application notes or other sourses.

Only single basic and very short information available at

Added LT8390 to keywords. Expanded subject.
[edited by: MStokowski at 8:39 PM (GMT -4) on 12 Mar 2024]

Top Replies