LM5145: eff

Hi Ding,

Thanks for the question. You can use the LM5145 quickstart calculator file to check efficiency and power losses. With 30V or 40V NexFETs, > 95% should be achievable.

Note that if Vin-max < 42V, you can use the LM25145.

Regards,

Tim

www.ti.com/tool/lm5145design-calc