Datasheet

UG-117 Evaluation Board User Guide
Rev. A | Page 6 of 8
GROUND CURRENT MEASUREMENTS
08935-010
LOAD
+
–
VOLTAGE SOURCE
AMMETER
0.00112
+
–
Figure 10. Ground Current Measurement Setup, TSOT
0
8935-011
LOAD
AMMETER
0.00112
+
–
+
–
VOLTAGE SOURCE
Figure 11. Ground Current Measurement Setup, WLCSP
Figure 10 and Figure 11 show how the evaluation board can be
connected to a voltage source and an ammeter for ground current
measurements. A resistor can be used as the load for the regulator.
Ensure that the resistor has a power rating that is adequate to
handle the power expected to be dissipated across it. An electronic
load can be used as an alternative. Ensure that the voltage source
can supply enough current for the expected load levels.
Follow these steps to connect to a voltage source and ammeter:
1. Connect the positive terminal (+) of the voltage source to
the VIN pad on the evaluation board.
2. Connect the positive terminal (+) of the ammeter to one of
the GND pads of the evaluation board.
3. Connect the negative terminal (−) of the ammeter to the
negative (−) terminal of the voltage source.
4. Connect a load between the VOUT pad of the evaluation
board and the negative (−) terminal of the voltage source.
When these connection steps are completed, the voltage source
can be turned on. If J1 is inserted (connecting EN to VIN for
automatic startup), the regulator powers up.