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Original question:

LM5150-Q1: LM5150's irush input current is too high when start-up

LM5150-Q1: Is LM5150 suit to replace MP3910 ?

Chen Bogey8
Mastermind 9990 points
Part Number: LM5150-Q1
Other Parts Discussed in Thread: LM3478, LM5155, LM3488, LM51551

Hi Sir 

I use cross reference to search replace MP3910 parts. but there have suggest LM5150/LM5155/LM3478/LM3488 parts.

May we know which one much suit to suggest?

                                                Bogey

  • 0
    TI__Guru* 78220 points
    Hi Chen,

    Thank you for your interests. I would like to recommend the LM51551 if you do a flyback, or the LM5155 if you do a boost or sepic. LM51551 has overcurrent hiccup mode function that is usually needed in flyback circuit.

    Thanks,
    Youhao