Datasheet

UG-229 Evaluation Board User Guide
Rev. 0 | Page 6 of 8
SHUTDOWN CURRENT MEASUREMENT
Figure 8 shows how the evaluation board can be connected to a
voltage source and an ammeter for shutdown current measure-
ments. The ammeter can also be connected to the VIN pad to
measure the ground current, which is equal to the shutdown
current when EN is tied to ground. Figure 7 shows the typical
shutdown current consumption for various input voltages.
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
–40 –20 0 20 40 60 80 100
SHUTDOWN CURRENT (µA)
TEMPERATURE (°C)
V
IN
= 1.1V
V
IN
= 1.5V
V
IN
= 1.8V
V
IN
= 2.4V
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 3.6V
09561-007
Figure 7. Shutdown Current vs. Temperature and Input Voltage, V
IN
Use the following 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 and EN pin on the evaluation board.
3. Connect the negative terminal (−) of the ammeter to the
VIN pad on the evaluation board.
The voltage source can now be turned on.
VOLTAGE SOURCE
AMMETER
0.00112
09561-008
Figure 8. Shutdown Current Measurement