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LM2594: Drop-in replacement for LM2594MX-5.0/NOPB

Gordo
Prodigy 150 points
Part Number: LM2594
Other Parts Discussed in Thread: LM2597, LM2674, LM2574

I'm looking for a drop-in replacement for LM2594MX-5.0/NOPB.

It looks like the LM2597MX-5.0/NOPB has some availability in the market and may be a possibility, except for the additional three pins: two outputs and one input.  At a quick glance it appears that these features can be ignored.  On my current design these pins are grounded.  Would this work as a drop-in replacement, or is there another option you can recommend?

If we are able to make some layout changes to the PCB, can you recommend a simplest solution, with plenty of market availability?

  • 0
    TI__Guru 72035 points

    Hello

    The LM2597 can be used, however the DELAY pin must be left floating.

    Another option is the LM2674; you need one extra capacitor for that device.

    The LM2574 is another option but it is not P-to-P.

    The TPS54321 seems to be in stock; but again is not P-to-P.

    Thanks