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LM3480 capacitor stability

Yiding Luo
Expert 5490 points
Other Parts Discussed in Thread: LM3480

Hey team,

I am looking at this LDO LM3480 on ti.com.

Is this stable with both ceramic and electrolytic capacitor at the input and output terminals?

I tried to look for this information in data sheet but could not find it.

 

Thanks,

Yiding 

  • 0
    TI__Mastermind 22610 points

    Yes.

    A point on the electrolytic capacitor ESR at the output terminal to keep in mind:

    If the application load is prone to abrupt changes in load current (i.e. fast edged load steps) the ESR in the electrolytic capacitor may cause undesirable voltage spikes. This is not a fault of the LM3480, it's just how high ESR capacitors behave with fast load steps.

    See Application Report SLVA072, Section 7,Transient Response:

    www.ti.com/.../slva072.pdf

    If load current is quiet and steady, then no worries.