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Original question:

LM3488: SEPIC Converter

LM3488: SEPIC Converter

vanaraj khistareeya
Prodigy 50 points
Part Number: LM3488
Other Parts Discussed in Thread: LM5155

I am using a car battery(12v) as input for LM3488. As you know the battery is discharged after some time, so the voltage of the battery is decreased. To get constant 12v output what I can use Battery charging circuit or SEPIC to boost the discharged battery voltage? 

  • 0
    TI__Guru* 78370 points

    Hi Vanaraj,

    Thank you for considering the LM3488.  If you want a regulated 12V with the varying battery voltage, you should consider the SEPIC.  If you just want to keep the voltage not be lower than 12V, you can just use a boost.  

    In addition to the LM3488, you may also consider the LM5155 which is our latest boost controller and it covers most of LM3488's application cases. 

    Thanks,

    Youhao Xi, Applications Engineering