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Marcus Müller
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KICAD / spice simulation problem

Here is the schematic enter image description hereSchematic

And I got the spice model of LM2596 from TI website and SS34 spice from here https://services.taiwansemi.com/storage/resources/spice-model-18/SS34.txttaiwan semi.

Now when I try to simulate the circuit, the output is not as desired..

KICAD simulation problem

Here is the schematic enter image description here

And I got the spice model of LM2596 from TI website and SS34 spice from here https://services.taiwansemi.com/storage/resources/spice-model-18/SS34.txt

Now when I try to simulate the circuit, the output is not as desired..

KICAD / spice simulation problem

Schematic

And I got the spice model of LM2596 from TI website and SS34 spice from taiwan semi.

Now when I try to simulate the circuit, the output is not as desired.

Source Link
Rakesh Mehta
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KICAD simulation problem

I am new to KICAD and trying to simulate a simple voltage regulator with LM2596.

Here is the schematic enter image description here

And I got the spice model of LM2596 from TI website and SS34 spice from here https://services.taiwansemi.com/storage/resources/spice-model-18/SS34.txt

Now when I try to simulate the circuit, the output is not as desired..

Here is the simulation log

Note: Codel model file loading path is C:\Users\user\Downloads\kicad-simulation-test\ Background thread stopped with timeout = 0 Note: Compatibility modes selected: ps lt a Circuit: KiCad schematic Reducing trtol to 1 for xspice 'A' devices Doing analysis at TEMP = 27.000000 and TNOM = 27.000000 Using SPARSE 1.3 as Direct Linear Solver Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Reference value : 1.00000e+00 Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Reference value : 5.00000e+00 Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Reference value : 1.00000e+01 Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully Note: Starting dynamic gmin stepping Warning: Dynamic gmin stepping failed Note: Starting true gmin stepping Warning: True gmin stepping failed Note: Starting source stepping Warning: source stepping failed Note: Transient op started Note: Transient op finished successfully No. of Data Rows : 12 

I see there are warnings in the simulation LOG, but I quite don't understand what those warnings are.

Here is the simulation output

enter image description here

Here is the simulation model PIN assignment of LM2596

enter image description here

Can someone please guide me on this and let me know how to rectify the warnings and get the desired 5V at the output?