In performing LT Spice simulation I came across a finding where the VOUT curve of the simulation peaked to just under the input voltage of +12V before settling back and rising toward the set point of +3.3V. I placed a PDF of that chart as an attach to this message. I see also that if I connect the run pin to a resistor divider this is no longer the case then the output behaves as would be expected. I was curious if this is an artifact of my simulation or a real electrical effect of the assembled circuit.
Hi, the simulation curve you show here looks like the output capacitor having an initial voltage (~10V). Otherwise the output voltage would start from 0V.