Hello,
I'm developing a buck converter exactly like the schematic below. The only difference is the STTHL06 (D2) diode in the feedback loop. In my case, I'm using an ES1J diode, which has a 35ns recovery time. My problem is the output voltage, which shows a lot of ripple when I use the ES1J, but when I replace the ES1J with an RS1M, which has a 500ns recovery time, the problem disappears. Why does this happen? I appreciate any help.
