TPS55340: TPS55340EVM-147 SEPIC application question

Cao Cao

Intellectual 770 points

Part Number: TPS55340

Hi Team,

I use TPS55340EVM-147 SEPIC to provide our Dashboard panel but current has audio noise !?

Could you help provide same solution to improve this issue?

over 7 years ago

0 EricLee over 7 years ago

TI__Mastermind 49661 points

Hello
Does the issue happen at light load? or heavy load ?
If it happens at heavy load, please try again with smaller R3(R3/10) and bigger C4(C4*10)
Thanks.

0 Cao Cao over 7 years ago in reply to EricLee

Intellectual 770 points

Hi Eric,

thanks for your reply. I'll try it.

Thanks.
Cao Cao

Power management

Power management forum

TPS55340: TPS55340EVM-147 SEPIC application question