VL input on analog switch
A voltage divider would be fine, the part draws only a few microamps from V_L. V_L is used as a reference to decide the voltage at which the part decides if an input is High or Low. So it doesn't need to be exact.

As Spehro Pefhany notes, there's a possibility that the current drawn will be larger if your signals are slowly rising. Decouple your voltage divider with a capacitor (with a diode to V+ so you don't force SCR latchup when the power is turned off), to handle that.