Iout=10mA is 19uA, but in the figure 16 IGND @ Iout=10mA can be 100uA (when Vin
Can you clarify?
The parameters in Table 1 are only valid for the conditions stated at the top
of Table 1. The relelvant condition here is Vin = Vout + 500mV. Table 16
shows the ground current in dropout which, by definition, means Vin = Vout.
The ground current is always higher in dropout.