Did you analyze the stability of the regulator?Hi,
Is the feedback loop of the attached 60v to 5v linear regulator the way you would do it?
I am treating the TL431 like a “normal” opamp.
You don't necessarily need the complex cpmpensation schema, but I would be surprized if the regulator is stable without basic PI compensation.Make R38 = 0R
Not fit C38, C37, R40, C36, R39, R37, C25