Hello everyone,

now i want to simulate the Positive regulator REF2925 in LTspice. But i can't find the LTspice model. So i decided to draw it by myself and use the REF2925.lib file. But i have gotten the problem.
Does anyone know what's the problem? Or does anyone have the LTspice model of REF2925?

Thanks very much in advance!
Jackie

 

Post the .lib file (if it's in English).

 

Post the .lib file (if it's in English).

See attached. Thank you!

 

See attached. Thank you!

That's an encrypted file which will not work with LTspice (apparently only works with Tina).
Don't you where you will find an unencrypted one.

 

That's an encrypted file which will not work with LTspice (apparently only works with Tina).
Don't you where you will find an unencrypted one.

Wow, it's the problem! But i haven't found the ltspice or pspice model of REF2925. Even in this links http://www.pspice.com/amplifiers-and-linear-ics/operational-amplifiers/cmos
Do you know where can i search this model or library file?

Thanks in advance!
Jackie

 

Sorry, I don't know where else you can look.
Can you use Tina for your simulation?
That device is just a voltage reference. Can you just use a voltage source in your simulation? Or use one of the LTspice reference models?

 

Sorry, I don't know where else you can look.
Can you use Tina for you simulation?
That device is just a voltage reference. Can you just use a voltage source in your simulation? Or use one of the LTspice reference models?

I can use Tina-Ti for this regulator. But in my circuit all the other components are in LTspice simulation and succeed. Now i have one problem on my actual PCB-Board. And i think the problem is maybe because of this positive regulator, so i want to test this adding to my circuit in LTspice to check it. If i use Tina-Ti, many components not from TI can't be in Tina-Ti simulated. So i have to search this regulator model.
Or do you know is it a problem: The current output of REF2925 is 25mA, and i want to use it to supply six OPA354 and three THS4521. Is this enough? Because i want to check if this is the problem in my PCB.
Attached are the datasheet.
Thanks
Jackie

 

The current output of REF2925 is 25mA, and i want to use it to supply six OPA354 and three THS4521. Is this enough?

Well, I could do that, but I'll leave it up to you.
Just look in the data sheet for how much current those devices take, and add them up.