Hi
I am trying to simulate the circuit in page 21 in this datasheet in LTSPICE:
https://www.analog.com/media/en/technical-documentation/data-sheets/3864fa.pdf

First is says "stepping source".. when I hit Escape it says "Pseudo transient analysis" and doesnt stop.
I tried using the alternate solver and I tried these commands ".options GminSteps=0, SrcSteps=0, pTranTau=1"
The stepping source disappear but not the Pseudo transient analysis.

I attached the simulation file.

Thank you

 

hello,

Use "startup in the .tran statement:


.tran 1m startup


eT

 

It worked! Thanks a lot!
But why is the output 0V? I double-checked the circuit. The connections are correct.

 

C5, M1 change.

 

Thanks a lot.. I checked a demo circuit from Analog Devices and found that C5 should be smaller to reduce simulation time but I should use the typical value for the real design. But am not sure why the FET had to be changed.

Anyway Thank you guys very much I really appreciate the help!