After a day of struggling with trying to simulate an LM2678 based buck converter (see: this post) another user suggested using TIs online power designer web bench tool to simulate. Selecting a design on the site gave me just about the exact same circuit I had designed by hand for a 5v buck converter using the design equations found in the LM2678 datasheet. I'm struggling to make sense of the simulation results from TIs web-bench, in fact they seem entirely nonsensical to me:
Transient Steady-State Analysis:
Could someone explain to me what this means, if anything? I'm expecting to see a constant 5v out of the steady state analysis voltage over the load but maybe I'm just not understanding what the results are telling me?