Datasheet

EVAL-ADP220/ADP221
Rev. 0 | Page 4 of 8
OUTPUT VOLTAGE MEASUREMENTS
07575-003
+–
VOLTAGE SOURCE
+–
VOLTMETER
1.99711
+–
VOLTMETER
1.99711
LOAD
LOAD
Figure 3. Output Voltage Measurement Setup
Figure 3 shows the evaluation board can be connected to a
voltage source and voltmeters for basic output voltage accuracy
measurements. A resistor can be used as the load for the regulator.
Ensure that the resistor has a power rating adequate to handle
the power expected to be dissipated across it. An electronic load
can also be used as an alternative. In addition, ensure that the
voltage source can supply enough current for the expected load
levels.
Follow these steps to connect to a voltage source and voltmeters:
1. Connect the negative terminal (−) of the voltage source to
one of the GND pads on the evaluation board.
2. Connect the positive terminal (+) of the voltage source to
the VIN pad of the evaluation board.
3. Connect a load between VOUT1 or VOUT2 and one of the
GND pads.
4. Connect the negative terminal (−) of the voltmeter to one
of the GND pads.
5. Connect the positive terminals (+) of the voltmeters TB5
(VOUT1) or TB6 (VOUT2).
The voltage source can now be turned on. If J1 or J2 is inserted
(connecting EN1 or EN2 to VIN for automatic startup), the
regulator powers up.