UG-054 Datasheet, PDF (7/8 Pages) Analog Devices – Setting Up the Evaluation Board for the ADP150

Evaluation Board User Guide
When these steps are completed, the voltage source can be
turned on. If J1 is inserted (connecting EN to VIN for auto-
matic startup), the regulator powers up.
GROUND CURRENT CONSUMPTION
Ground current measurements can determine how much current
the internal circuits of the regulator consume while the circuits
perform the regulation function. To be efficient, the regulator
must consume as little current as possible. Typically, the regulator
uses the maximum current when supplying its largest load level
(150 mA). Figure 12 shows the typical ground current consump-
tion for various load levels at VOUT = 3.3 V and TA = 25°C.
When the device is disabled (EN = GND), ground current
drops to less than 1 μA.
UG-054
250
I_OUT = 150mA
200
I_OUT = 100mA
150
I_OUT = 50mA
100
I_OUT = 10mA
50
I_OUT = 1mA
I_OUT = 0.1mA
0
3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
V_IN (V)
Figure 12. Ground Current vs. Input Voltage (VIN) at VOUT = 3.3 V, TA = 25°C
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