TPS54340-Q1: Is there any influence if the value of R401 changed from 910uF to 1000pF?

Lian Wu

Genius 5250 points

Part Number: TPS54340-Q1

Dears:

Is there any influence if the value of R401 changed from 910uF to 1000pF?

The schematic as below picture:

over 5 years ago

0 Katelyn Wiggenhorn over 5 years ago

TI__Genius 11040 points

Hi Luck,

I do not see which component you are referring to. There are multiple R401's. Is there a digit after R401 - ie. R4014?

Thank you,
Katelyn

0 Katelyn Wiggenhorn over 5 years ago in reply to Katelyn Wiggenhorn

TI__Genius 11040 points

Hi Luck ,

I want to follow up with you. There are multiple R401's. Is there a digit after R401 - ie. R4014?

Thanks,
Katelyn

0 Katelyn Wiggenhorn over 5 years ago in reply to Katelyn Wiggenhorn

TI__Genius 11040 points

Hi Luck,

Due to inactivity, I am going to close this thread. If you have any remaining questions, please respond to this thread, and it will reopen.

Best Regards,
Katelyn

0 Lian Wu over 5 years ago in reply to Katelyn Wiggenhorn

Genius 5250 points

Hi Katelyn:
I am so sorry for my delay reply.
The correct information is C4019.
Pls. kindly help to give some advice.

0 Katelyn Wiggenhorn over 5 years ago in reply to Lian Wu

TI__Genius 11040 points

Hi Luck,

Yes, this will effect the stability because you are changing the compensation. I would recommend verifying the stability with the excel calculator first.

Best Regards,
Katelyn

0 Lian Wu over 5 years ago in reply to Katelyn Wiggenhorn

Genius 5250 points

Hi Katelyn:
Could you kindly help to provide the excel, and we will calculator and evaluate the influence.

0 Katelyn Wiggenhorn over 5 years ago in reply to Lian Wu

TI__Genius 11040 points

Hi Luck,

Please see the attached calculator.

4784.TPS54360-361FAMILY_CALC_TOOL_REVE.xls

Best Regards,

Katelyn

Power management

Power management forum

TPS54340-Q1: Is there any influence if the value of R401 changed from 910uF to 1000pF?