I cannot get either the example simulation within LTspice nor the simulation on the LT83016 webpage to run. I am using LTspice 24.0.9 and updated my libraries today as I saw similar issues with simulating the part were resolved by updating the arts libraires. It appears that the soft start expires in the example simulations and the LT8306 stops switching for a long time and then initiates a new soft-start cycle. However, changing the Rsense value or the load and output capacitor to allow the voltage rail to charge faster do not solve the issue and the device still stops switching for a long time. I would expect the examples not to be designed in such a way that the soft start is violated, so I suspect there is an issue with the model itself. Can you please assist in getting the controller to run properly in LTspice so I can evaluate a possible design?
Results using LTspice Internal Example:
With Rsense changed from 5m to 2m:
Results using analog.com webpage example (with TFZ13B diode adjusted to TFZV13B that actually exists):
