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TLV3603: PSpice simulation issue

Richard Coleman
Prodigy 20 points

Part Number: TLV3603
Other Parts Discussed in Thread: PSPICE-FOR-TI

Tool/software:

Hi,

I downloaded PSpice for TI (v23.1-2024 S001) to try the TLV3603 model. I'm getting some strange negative voltages at the output pin. Can anyone help?

I've attached the design and some screenshots.

Kind regards,

Richard

tlv3603_test-2025-08-12T10-56.zip

  • 0
    TI__Genius 13845 points

    Hi Richard,

    I was able to get a correct simulation via the library in the TLV3603 product page:

    It's possible that there was a bug that was fixed in the product page version of the tlv3603.lib file that wasn't updated in the PSpice-for-TI version:

    Could you please download the model from the TLV3603 product page and add the tlv3603.lib from that zip and add it to your configuration files?

  • 0 in reply to HO SIU
    Prodigy 20 points

    Adding the product page .lib file as shown didn't solve the problem, but I noticed the different pinouts in the diff you posted. Editing the pinout of the symbol fixed the problem.

    1. Right click on TLV3603 symbol
    2. Edit Part
    3. Change pin order to IN+ IN- LEHY OUT V+ V- 
    4. Change PSpiceTemplate to X^@REFDES %IN+ %IN- %LEHY %OUT %V+ %V- @MODEL