Was just going to play around in LTspice with a linear regulator, dropped a few components and immediately got an unexpected result. It's a 12 volt regulator model (supplied directly from linear) I was surprised to see the intial voltage spikes to 16 volts, granted the output is unloaded. Using a large output cap starts eating the voltage peak and applying a load does as well. I'm using the startup directive which means it starts at 0 volts and goes to 20 volts in 20us. Do real world linear regulators do this as well? Can anyone shed some light on the responce?
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