UG-054

Evaluation Board User Guide

Rev. 0 | Page 6 of 8

GROUND CURRENT MEASUREMENTS

VOLTAGE SOURCE

LOAD

AMMETER

Figure 10. Ground Current Measurement Setup, TSOT

VOLTAGE SOURCE

AMMETER

LOAD

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 that is 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 of the evaluation board.

2.

Connect the positive terminal (+) of the ammeter to one

of the GND pads on 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.