Loop Gain Stability - LTSpice

[Smillsey]

You don't have to worry about the 39° phase margin before zero crossing, your circuit will be stable. To get exact mathematical answer the simulation is the best combined with empircial considerations. This is the engineering way. If you don't write a thesis and don't want to spend time with basic small signal modeling there is no rule you must. Not a disadvantage if you do, but not necessary.

Ok thanks Frank

I think I will build the board and perform some tests. I couldn’t get my own mosfet model working last night (I tried to create an IRF1324.) model.

I also will be adding a filter across the load which will have a cut off frequency of around 1kHz, so I will just check the effect of this before laying the board out.