ISL81802EVAL3Z
1. Functional Description
R16UH0004EU0100 Rev.1.00
Page 4 of 19
Sep.15.20
2. Turn on the power supply.
3. Adjust the input voltage (V
IN
) within the specified range and observe the output voltage. The output voltage
variation should be within 3%.
4. Adjust the load current within the specified range and observe the output voltage. The output voltage variation
should be within 3%.
5. Use an oscilloscope to observe output voltage ripple and phase node ringing. For accurate measurement, see
for proper test setup.
Figure 2. Proper Test Setup
Figure 3. Proper Probe Setup to Measure Output Ripple and Phase Node Ringing
A
Vin
+
-
+
-
LO
A
D
Vo
A
+
-
V
+
-
Output Capacitor
or MOSFET
