TPS55289: schematic check

Fred Cheng

Part Number: TPS55289

Hi team,

since there's no calculator now,

would you help check the schematic for me?

especially compensation network.

the spec is below:

Vin: 12~18V

Vout:5V/9V/12V

Iout:3A

0 Zack Liu over 1 year ago

Hi Fred,

It's suggested to use 4.7uH inductance for PL1.

Does customer have any other aluminum electrolytic capacitor connected at SYS_PD_OUT? Could you share the capacitor PC13 part number?

0 Fred Cheng over 1 year ago in reply to Zack Liu

Hi Zack,

are you suggesting them to use MLCC instead of Ecap?

0 Zack Liu over 1 year ago in reply to Fred Cheng

Hi Fred,

No. I just want to know the total effective output capacitance so that I can calculate the suitable compensation parameters.

0 Fred Cheng over 1 year ago in reply to Zack Liu

Hi Zack,

they are all MLCC

0 Zack Liu over 1 year ago in reply to Fred Cheng

Hi Fred,

As I said, could you share the PC13 part number so that I can check the total output effective capacitance?

0 Zack Liu over 1 year ago in reply to Zack Liu

Hi Fred,

Is there any update on it?

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