TPS53319: ripple injection circuit location

Fred Cheng

Part Number: TPS53319

Hi team,

can they use this connection to connect the C1 and R7 close to inductor?

is this better or recommendation?

0 David_Daniels over 1 year ago

yes,

R7 and C1 are near the inductor.

The C2 is near device.

0 Fred Cheng over 1 year ago in reply to David_Daniels

Hi David,

please check again,

customer revise ripple injection circuit as below,

0 David_Daniels over 1 year ago in reply to Fred Cheng

I think connecting the boot capacitor directly to LL node is better.

Use a separate trace for RCC injection. Connect the C of the injection circuit near capacitor on Vout.

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