Answer:
To minimize the current consumption of the voltage divider feedback resistor, opt for a higher total resistance in the resistor network.
For Example: A 10V output setting, following the equation from datasheet.
Rbot = 10Kohms, Rtop = 90Kohms, Current consumption is 100uA.
Rbot = 50Kohms, Rtop = 450Kohms, Current consumption is 20uA.
Base on the above sample design, higher resistance leads to lower current consumption.