Is there a requirement that the EN pin of the LT8642S must be stable before VIN is applied? I am simulating a 1V, 6A regulator circuit using LTSPICE and I see that if the EN pin is not Up before applying VIN, the regulator does not produce any output. If I generate EN signal before VIN signal, the regulator functions correctly.
Is this the issue with Simulation or does the chip really behaves this way?
Please find the simulation file below
LT8642S doesn't have sequence requirement for EN and VIN. EN can be applied after VIN is ready.