LM5143A-Q1: lm5143

Hi Liu,

The 'A' version offers equivalent silicon and PCB layout to the original. However, it benefits from being manufactured on a 300mm fab with in-house test and assembly, significantly improving availability. The original LM5143-Q1 comes from a different fabrication facility, making the LM5143A-Q1 the preferred option now.

These devices are identical in terms of performance and functionality. While the mechanical drawing is slightly different, the footprints can be shared.

Hope this helps

Thank you

Regards

Onkar Bhakare