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ADN8833 Capacitor and Inductor Selection

Question asked by Mochi on Jul 15, 2016
Latest reply on Oct 19, 2016 by Mochi

Please advise me again.

I read a ADN8833 datasheet. (Rev. A | Page 18 of 23)

Recommended capacitors is 10μF.

>A 10 μF ceramic capacitor rated at 10 V is the minimum recommended value.

>Increasing the capacitance reduces the switching ripple that couples into the power supply but increases the capacitor size.

I'm OK.

 

When 10 μF was chosen, how much numerical value was substituted for Δ V, Vsw_out, Vin?

I'd like to know about the margin of the fixed number for a better design.

Would it be considered by the fixed number about the capacitance-voltage dependence?

Do I have to choose a bigger capacitor?

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