7V to about 24VDC, with 300mApk from Vin and 100kHz clock (Ct=330pF).
First Start Clock by closing bottom middle switch. Then turn on Feed Back by opening lower right switch. Other switches are for loading and bias near operating point.
Note: simulation crashes with large output capacitance, and at regulation. I think a Hysteresis setting for the op-amp may help.
