Could I use the NB671LA or NB671LB as a replacement for the NB671LC?

DC-DC Power Converters
1

Dear MPS team.

I found that the NB671LCGQ-Z on my ASUS H510 motherboard is shorted on Pin 1.

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I have been trying to find a replacement, but no suppliers seem to have the NB671LC in stock. The only available parts I can find are the NB671LA, NB671LB, and NB691GG-Z.

Could I use the NB671LA, NB671LB, or NB691GG-Z as a replacement for the NB671LC?. If so, which one would be the most suitable? Are there any differences in functionality, pinout, or default settings that I should be aware of before replacing it?

2

Help me please. Thanks you.

3

Seems like the NB671LA is a close match to the component that is currently in your motherboard. The main difference is that the quiescent current is higher than the NB671LCGQ-Z (60μA vs 120μA).

However, this component has reached EOL status. We do have a component with a similar package and specs as the NB671LCGQ-Z. Here is a link for it:

MP8765 | 24V, 6A High Efficiency Synchronous Step-down Converter with Hiccup OCP, PWM/PFM mode pin and output discharge | MPS

Please let us know if you have any more questions!

Regards,

Yash