LM5002: Can the LM5002MAX/N OPB and LM5001IDRQ1 be P2P?

Hello Xiaofu,

Thanks for reaching out to us via e2e.

The pinout / footprint is the same.

But there is one major difference:
The internal sense resistor which is used to control the cycle-by-cycle current regulation is different.

This does not mean that the LM5001 _can_ handle a higher current.
It means that the LM5001 _must_ see a higher current before it will turn off the FET.

This will change the duty cycle and maybe it cannot work at all.
You can try using a smaller inductor to reach the higher current limit within shorter time, but this will definitely increase the ripple current.

Overall, it is not really a drop-in replacement. It is not possible to just change a resistor or so to make it work in the same way.

Best regards,
Harry

Hello Archie,

I have not seen an update from you for two weeks, so I assume the questions are answered and the issue is solved.
I close this thread now. If there is still something open, please reply and the thread will get opened again.
If you have any other question or of the thread has been locked, please open a new one.

Clicking the Resolved Button also helps us to maintain this forum.

Best regards,
Harry