Electronic – What does the “L” in inductance stand for

You are confusing the Q of the inductance with the Q of the circuit. In a series LCR circuit, the Q of the inductor is the ratio of the voltage across the inductor to the voltage across the circuit. As you say, this is also the ratio of the inductive reactance to the resistance. In a circuit with series R & L in parallel with C, this relation also holds.

In a parallel LCR circuit, the resistance is no longer a property of the inductor itself which is why you get a different definition for Q. The Q in this case is more a property of the circuit than the inductor. You cannot convert one circuit to the other although you could find two circuits with identical Q.

The Laplace transforms of the impedance for (r + L) // C is ...

$$\frac{\frac{r}{LC}+\mathrm s\frac{1}{C}}{\mathrm s^2+\mathrm s\frac{r}{L}+\frac{1}{LC}}$$

for which Q=\$\frac{1}{r}\sqrt{\frac{L}{C}}\$ (at resonance)

The Laplace transform of the impedance for R // L // C is ...

$$\frac{\mathrm s\frac{1}{C}}{\mathrm s^2+\mathrm s\frac{1}{RC}+\frac{1}{LC}}$$

for which Q=\$R\sqrt{\frac{C}{L}}\$ (at resonance)

If you zoom the datasheet, you can see that the diagrams actually recommends the use of a 2.2uH inductor!

Although, it seems that Open Parts Library doesn't have these inductos either (but you can buy them cheap from Digikey, Mouser or any other distributor). To select one of them, is very important to take note on the maximum current the inductor can manage (as these ICs can have up to 1-2A as inductor current), so be careful!

This value is tipycal for step-down converters (I have used some of TI and other manufacturers and it's a standard value for a wide range of applications). I strongly believe you can use the datasheets of those parts to search for tips on value selection.