...
Also, zener diode working properly since Vs (green) and Vg (purple) are about 7 volts apart which means that Vgs is within the maximum.
...
Maximum and Minimum Input Voltage
...
So for Vout = 5V, Vin is 7V-26V
for Vout = 12V, Vin is 14V-26V
...
Also, zener diode working properly since Vs (green) and Vg (purple) are about 7 volts apart which means that Vgs is within the maximum.
...
...
So for Vout = 5V, Vin is 7V-26V
for Vout = 12V, Vin is 14V-26V