TPS54527: Vreg5 capacitor

watanabe

Expert 1740 points

Part Number: TPS54527

Hi,

My customer has a question.

When Vreg5 capacitor was changed from 1 uF to 0.47 uF,
Does the rise and fall time change?

Best regards,

-watanabe

over 8 years ago

0 Anthony Lang over 8 years ago

TI__Expert 4875 points

Hi Watanabe,

Thank you for your interest on TPS54527. Does the rise and fall time means soft start time and power off time? If yes, cap on VREG5 will not affect. For soft start time, only cap on SS pin could change it. For power off time, the input power source, output inductor and capacitor will affect.

Best

Anthony

0 watanabe over 8 years ago in reply to Anthony Lang

Expert 1740 points

Hi Lang,

I appriciate for your support.
I understood that cap on vreg5 will not affect.
Is TPS56527 similar too?

Best regards,

watanabe

0 Anthony Lang over 8 years ago in reply to watanabe

TI__Expert 4875 points

Hi Watanabe,

I did not find the part number TPS56527. Could you double check on that?

Best,
Anthony

0 watanabe over 8 years ago in reply to Anthony Lang

Expert 1740 points

Hi Lang,

I appriciate for your quick responce.

It was my mistake.

Best regards,
Watanabe

Power management

Power management forum

TPS54527: Vreg5 capacitor