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TMS570LC4357 with TPS65381

Livio Franchin
Intellectual 835 points
Other Parts Discussed in Thread: TMS570LC4357, TMS570LS3137

Hi

I want to use the TMS570LC4357 combined with the TPS65381 microprocessor compound for safety reasons.

My concern is about TPS65381 power dissipation because in a previus project with the TMS570LS3137 I had to reduce the clock frequency to obtain an aceptable TPS65381 power dissipation.

My question is if using the TMS570LC4357 at 100Mhz (which is 1/3 of the maximum frequency) the TPS65381 can provide the necessary power to the CPU without power dissipation problem.

PS: in my application unfortunately the TPS input voltage is 25V.

Best regards

Livio