Hello Gui,
I suspect there is an issue with the spice model itself. I have used the design from the evaluation model from TI and the circuit is working perfectly. I am using the same for my simulations henceforth. Thank you for your suggestions.
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I am using your dev kit, TPS54231EVM-372.
Again, I don't think this problem is IC specific. I assume all embedded devices with ceramic input caps see this problem(C1 and C2 in the dev kit)
Hi Sachin,
I am not completely sure if this is what you wanted but, for 12V Vin and 1.2V Vout the TPS54231 will start up with Vin and turn off with Vin, even if the Ren1 and Ren2 resistors are not present. Refer to datasheet page 8 for more information…
Normally the IC is configured to operate at switching frequency based on the RT/SYNC resistor. However, that comes with a condition of selected input and output voltages based on Table 6-3. This table also mentions the switching frequency that the module…
