LM5143A-Q1: Can it do 15V 70A out put if using multi phase ?

Hello PY

PYTsai said:

May I check if LM5143A-Q1 can do 15V 70A out put if using multi phase ?

PYTsai said:

Vi = 30 ~ 50V

Yes, PY this is possible. However, LM5137F-q1 is better suited for this input range. Additionally, it has better efficiency in dual phase setup.

Thank you

Regards

Onkar Bhakare

Hi Bhakare:

   Thank you for your reply. We are considering using a single LM5143A-Q1 2-phase synchronous buck controller to generate a 15V output at 70A.

Can this requirement be met through proper selection of MOSFETs and implementing proper thermal management?

Or is there a practical upper limit to the power output capability of the LM5143A-Q1?

Hi Bhakare:

    Thank you for your reply. What was the ambient temperature during the test in the report you provided? We would like to understand the temperature rise observed during the test.

Thank you

Hello Lin

Ambient was around 29 deg. 

Thank you

Regards

Onkar Bhakare

Hello Lin

Let me know if you need further help. Kindly close the tread if query has been resolved.

Thank you

Regards

Onkar Bhakare

Hi Bhakare:

     Thank your for your help.  You may close this topic can be close. 

Regards

YuMing Lin