Tool/software: WEBENCH® Design Tools
For a design with the LMZM33603 in Web Bench, 24V in, 12V out, 2A, the tool is recommending the TDK C2012X5R1V226M125AC, claiming that the total derated capacitance for two is about 29uF. See screenshot
However, when I put the same part into TDK's SEAT tool, it tells me that at 12V bias, that part has only about 3uF:
What am I missing here? Is this an error in your Webbench data about this part?