Figure 2: "L" And "H" Jumper Table, Marked On The Em21Xx Evaluation Board Silk Screen - Intel Enpirion EM21 Series User Manual

5) Set the output voltage
Using the chart from the silkscreen, please select the desired output voltage, using

ONLY ONE switch ON. This setting will be read by the module when the part is
powered on or by PMBus command; changing the resistor on the fly will not have any
effect.
6) Power-up the board
After all preparations above, the board should be ready to perform. If the GUI

interface dongle is not used, the jumper J6 should be moved to the "ON" position;
else the jumper J6 should be in the "BUS" position.
The voltage range (High/Low) is marked on the board, as shown in Figure


Figure 2: "L" and "H" Jumper Table, Marked On The EM21xx Evaluation Board Silk Screen

For instruction on how to use the EM21xx GUI, please read "GUI User Guide."

NOTE: To measure the Bode Plot of the DC-DC converter, R12 must be replaced with 50Ω resistor across which to inject
the signal, while TP18, TP20, TP8 and TP21 should be used to connect the probes of the phase analyzer.
15066 September 3, 2018
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
2:
6
Rev A