TPS62866EVM-051: Efficiency test

Andy Liu3

Part Number: TPS62866EVM-051

Hi expert,

I test Efficiency of TPS62866EVM-051, find when load is 0.03A, the calculated result does not match the datasheet data. And Please see the attachment for my test data

Due to laboratory equipment, when the electronic load is set to zero, there will still be a load of 0.03A, and it is impossible to verify the efficiency of a smaller load. The current result of 0.05A and above calculated in the same environment is reasonable.

Could you please help to test the efficiency of the EVM board below 0.05A。

Thanks.

Best Regards,

Andy Liu │TI Analog FAE

TPS62866 EVM Efficiency test_10.20.xlsxMobile: +86-18817878409

over 3 years ago

0 Dorian Brillet de Cande over 3 years ago

TI__Genius 14856 points

Hello Andy,

One thing you can see looking at the datasheet plots is that the scaling on the X axis is in a log-scale which is different than your method in the above excel file.

I would take this conversation to private email so I can share with you the appropriated data.

Can you accept my friend request ?
Thanks a lot!

Regards,

Dorian

0 Andy Liu3 over 3 years ago in reply to Dorian Brillet de Cande

TI__Intellectual 2500 points

Hi Dorian,

Thank you very much for sharing suitable data with me. My email is wenlong-liu@ti.com.
Looking forward to your reply, thanks again.

Best Regards,

Andy Liu │TI Analog FAE

Mobile: +86-18817878409

0 Dorian Brillet de Cande over 3 years ago in reply to Andy Liu3

TI__Genius 14856 points

Hello Andy,

I will then contact you directly.

Thanks,

Dorian

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TPS62866EVM-051: Efficiency test