TPS65150-Q1: How to compute the Rcom and Ccom

Sherry Liang

Part Number: TPS65150-Q1

Dear team,

I see the recommendation values, but my input voltage is 4V, and my boost output is 11.6V. How should I choose the Rcomp and Ccomp. Could you please tell me the how to compute these two values?

Thanks & Best Regards,

Sherry

over 4 years ago

0 Aaron Goodson over 4 years ago

TI__Expert 6330 points

Hi,

I have notified our expert regarding this topic. Please expect a response by 8/30/19.

Thanks,

Aaron

0 Sherry Liang over 4 years ago in reply to Aaron Goodson

TI__Genius 10255 points

HI Aaron,

Could you please give me the answer today? The customer is waiting for the answer.

Thanks & Best Regards,

Sherry

0 Liaqat Khan over 4 years ago

TI__Mastermind 18550 points

Hi Sherry,

For input supply of 4V, I would suggest to use same values as those suggested for 5V in the datasheet. We have previously done loop stability measurements with these same values at 3.8V input supply and they work reasonably well so I am confident that they will work well at 4V. Customer should also do their own loop stability or load step response measurements once their boards are back.

Kind Regards,

Liaqat

0 Sherry Liang over 4 years ago in reply to Liaqat Khan

TI__Genius 10255 points

Hi Liaqat,

Thanks for your reply!

Is there any equation to compute this parameter?

Thanks & Best Regards,

Sherry

Power management

Power management forum

TPS65150-Q1: How to compute the Rcom and Ccom