I just manage to include the SPICE Model. I am not sure if it is working fine or not.
In PNP transistor, to turn on the transistor, the base voltage has to be below -0.6 V. Such that emitter to base is +0.6 V forward bias. But in simulation it is not like that. It seems to be conducting.
When the transistor is not conducting (base voltage is higher then -0.6 V) the collector voltage should be the supply voltage.
you have only changed the reference designator from "Q1" to FMMT591. You have to change the "value" PNP to FMMT591, see my attached image in the previous reply.
I have changed the value to "FMMT591". I am not sure about Prefix. It is QP. Kindly have a look at the simulation and let me know if I need to change anything more.
Decrease the increments in your DC analysis from 10 (at the moment: .dc Vin 0 -3.3 10) to e.g. 0.01. That's your voltage step/increment. At the moment you only cover "1" step, as your voltage span of interest is only from 0V to -3.3V.
I thought it as number of steps. But now I understand that it is one voltage step/increment. I will change it and run the simulation again. Thanks you notice.