I'm trying to add to spice, not sure what I'm doing... wrong... lol

created the asy:






*DIODES-BCD AP2127 ADJ Version Spice Model v1.0
*
*NOTE: This is a simplified model not all features are modeled.
*
.subckt AP2127_ADJ 1 2 3 4 5
* NODES: VIN GND EN ADJ VOUT
M1 5 9 1 1 MOD1 L=1u W=1000u
R1 6 1 1E6
C1 9 1 20E-12
C2 5 9 20E-12
G1 2 20 4 12 6E-6
G2 2 22 12 4 6E-6
F1 22 2 VS 1
F2 1 6 VS 20
G3 6 1 22 2 100E-6
R3 20 23 10E3
VS 23 2 0
C3 20 2 310E-15
C4 20 5 10E-12
R2 22 2 5E6
R5 22 24 400E3
C5 24 2 20E-12
D1 5 1 Dmod1
R6 3 13 20E4
R7 3 2 3E6
C6 13 2 4E-6
R8 1 5 50E6
R9 6 9 20E3
R10 2 12 Rmod1 1
R40 5 2 5E4
S1 1 6 13 2 Smod1
I1 2 12 0.8
.MODEL MOD1 PMOS (VTO=-0.82 RS=0.2 RD=0.2 IS=1E-15 KP=0.73 KF=2e-19 AF=1.22)
.MODEL Dmod1 D (IS=1E-13 RS=0.5 N=1)
.MODEL Dmod2 D (IS=1E-13 RS=0.1 N=0.5)
.MODEL Rmod1 RES (TC1=-3E-5 TC2=-1E-7)
.MODEL Smod1 VSWITCH RON=1E-3 ROFF=10E6 VON=0.5 VOFF=1.2
.ENDS AP2127_ADJ
*

 

In the Symbol Attribute editor, try :-
Prefix: X
SpiceModel: AP2127_ADJ
Value: AP2127_ADJ
ModelFile: AP2127_ADJ.sub

Save the asy and sub files where Spice expects to find them.

 

YES!!! it works thank you @Alec_t

 

Good, but setting the attribute 'ModelFile: AP2127_ADJ.sub' should avoid having to add an include command each time you use the model. You don't need the '.sub' bit in the SpiceModel attribute.
Value2 can be blank.

 

I tried adding TL071, LM358 and a few other jellybean opamps and still having issues, I'm sure I've missed something. The regulator is working perfectly now. I need a 0-5V (DC) opamp to boost a 200 mV signal up to 1V for better ADC resolution.

 

I've had problems with the LM358 model in my collection. If the schematic has only one instance the model works, but with more than one instance the sim grinds to a halt. I'll get round to finding a better model eventually . In the meantime I just use the LT1006 model when a second instance is needed.

 

In my collection of models there are several models of this chip (5 pcs.), including the model on transistors. In one of my circuits I put 4 pcs (with my model) and everything worked. Also I have a model of the latest, low voltage version of this chip - LM358LV.

 

@Bordodynov
I downloaded your model collection a while ago. Thanks. Time for an update of my collection methinks.

 

I’m so close to finishing my design... I decided to go a different route and will us a TI INA266 for I2C current sense amplifier instead. It has 16 bit resolution and should be A better solution. I won’t be able to model that unfortunately.

 

@Bordodynov
I downloaded your model collection a while ago. Thanks. Time for an update of my collection methinks.

I add models to my collection all the time. A couple of days ago I added some transistors, operational amplifiers and a stabilizer mentioned in this topic.