Variations in I_Q-GND, I_SHDN and V_OUT accuracy are all good indicators of the manufacturability of a process technology’s components. Table 1, from the TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast Transient Response Data Sheet, lists that I_GND at no load varies 25 nA to 60 nA over a -40°C to 85°C temperature range. This variation across temperature is representative of current mirror mismatch and I_BIAS generation control. The I_SHDN, which varies from 3 nA to 10 nA at room temperature, is a good indicator of power FET and digital logic leakage control. V_OUT accuracy is <1.5% over temperature, which is a good indicator of subthreshold mismatch control.