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TPS5430: TPS5430

ilya feldman
Prodigy 130 points
Part Number: TPS5430

Hello

I have implement the TPS5430 in my devise.

I made pretest in certification labs and find that i have exception from radiated emission from DC/DC.

1. do i made layout correct ?

I have made own GND to DC/DC, is it correct? I connect to common GND with VIAs (Marked in red) or i need make one GND ?

2. Do i need connect a common mode choke before switching power supply (TPS5430) please advise.

  • 0
    TI__Guru 69495 points

    I did not see any layout attached to this post.

  • 0 in reply to Frank De Stasi
    Prodigy 130 points

    Hello

    I have implement the TPS5430 in my devise.

    I made pretest in certification labs and find that i have exception from radiated emission from DC/DC from 100 - 200MHz

    1. do i made layout correct ?

    2. I have made own GND to DC/DC, is it correct? I connect to common GND with VIAs (Marked in red) or i need make one GND ?

    3. Do i need connect a common mode choke before switching power supply (TPS5430), if yes, do i need a capacitors for filter (where) please advise.