Information on LTSpice switching regulator macromodels?
The vast majority, if not all of the switching regulators are encrypted. If you want to model such devices, then your best friends will be the A-devices and the VCSW.
Also, that opamp model, even if written by Jung, is not very relevant to what LTspice models use, since the &quot;cornerstone&quot; (word used by Mike Engelhardt) of almost all of the opamp models is the [SpecialFunction]/OTA. You can easily verify this since a lot of the opamp models are not encrypted.