UG-230 Evaluation Board User Guide
Rev. 0 | Page 8 of 10
SHUTDOWN CURRENT MEASUREMENT
Figure 12 and Figure 13 show how the evaluation board can be
connected to a voltage source and an ammeter for shutdown
current measurements. The ammeter can also be connected to the
GND terminal to measure the ground current, which is equal to
the shutdown current when EN is tied to ground. Figure 11
shows the typical shutdown current consumption for various
input voltages.
100
0
20
40
60
80
10
30
50
70
90
–40 –20 0 20 40 60 80 100
GROUND CURRENT (µA)
TEMPERATURE (°C)
1.65V
2.10V
2.50V
3.30V
3.80V
5.50V
6.50V
09562-011
Figure 11. Shutdown Current vs. Temperature and Input Voltage
Follow these steps to connect to a voltage source and ammeter:
1. Connect the positive terminal (+) of the voltage source to
the (+) of the ammeter.
2. Connect the negative (−) terminal of the voltage source to
GND pad on the evaluation board.
3. Connect the negative terminal (−) of the ammeter to the
VIN pad on the evaluation board.
4. Connect the EN pin to ground.
The voltage source can now be turned on.
VOLTAGE
SOURCE
+
–
+
–
AMMETER
0.00112
9562-012
Figure 12. LFCSP Shutdown Current Measurement
