Reduce transients in PF8100

[Ellu24]

I am designing a hardware using LS1046 for space applications. I am using PF8100 and LTC7150 as in freeway board for the power supply.

1) Should I use and other devices (like TVS diode or zener diode) other than in freeway board to reduce the transients?

2) If I should use the above, where should I place the same?

Thanking you in advance.

[guoweisun]

If add the robustness performance on EMC test, you can add the TVS on input terminations of regulators.

According the EMC level to select the corresponding components.

[Ellu24]

Thank you very much for your prompt response. Can you please suggest any TVS diode for this application. As per design, I will get 5v of input voltage from 6 pin picoblade connector and then I should down convert that to 3.3.V(using LT8642) and 1V (LTC7150) and 3.3 V as the input of PMIC(PF8100). Where can I add the TVS? Should I filter the 5V power from ATX power supply?

Thanking you in advance.

[guoweisun · Accepted solution]

Here I give example for this part green circle:

[Ellu24]

Thank you very much for the details.