The inductor is selected to meet the recommended
peak-to-peak voltage ripple, ΔV(CSP-CSN):
Equation 32.
The closest standard capacitor is 15
µH.
- Lower inductor values increase the peak-to-peak inductor
current, which minimizes size and cost at the expense of reduced efficiency and
larger output capacitor.
- Higher inductance values decrease the peak-to-peak inductor
current, which increases efficiency but reduces the operating range based on
minimum sense voltage ripple, ΔV(CSP-CSN) specification.