Analog LTM8071

PDF

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.

Thank you.

Pete