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LM22676: Differences with LM22673 & LM26765

Francis Jiang
Expert 3160 points
Part Number: LM22676
Other Parts Discussed in Thread: LM22673, LM2676, TPS542021, LMR16020, LMR36520, LMR38020

Tool/software:

Hi Team,

What's the differences between LM22676, LM22673 an LM26765? Customer is asking it. Thanks for your great help here.

BRs,

Francis

  • +1
    TI__Expert 8660 points

    Hi Franics,

    Did you mean LM2676 as the third device?

    If so, it a lower frequency one compared to the other two, so more suited for higher efficiency applications.

    Between LM22676 and LM22673 the difference is mostly in the features. LM22673 has adjustable current limit and soft start time.

    Just FYI, these are somewhat older devices so you might want to take a look at some newer alternatives.

    Regards,

    Niranjan

  • 0 in reply to Niranjan Nair
    TI__Expert 3160 points

    Hi Niranjan,

    Thanks for your help.

    Yes, LM2676. I know these device are old, I have promoted TPS542021 to customer but there is no CPN in their system(means more complex), could you please also suggest a wide buck device here, that I will let customer consider it also. Thanks. 10-40Vin, 5Vout, 2A load.

    BRs,

    Francis

  • +1 in reply to Francis Jiang
    TI__Expert 8660 points

    Hi Francis,

    If VIN range can go up to 40V, it would be best to have a converter which can support at least 60V input voltage.

    You can consider the following devices :

    1) LMR16020 : 60V,2A async buck

    2) LMR36520 : 60V, 2A sync buck

    3) LMR38020 : 80V, 2A sync buck if more margin is needed

    Regards,

    Niranjan

  • 0 in reply to Niranjan Nair
    TI__Expert 3160 points

    Hi Niranjan,

    Thanks for your great help, no other questions here.