ADP5310READJ-EVALZ User Guide UG-824
Rev. A | Page 3 of 8
SETTING UP THE EVALUATION BOARD
POWERING UP THE EVALUATION BOARD
The ADP5310 evaluation board comes fully assembled and
tested. Before applying power to the evaluation board, follow
the setup procedures in this section.
Jumper Settings
Table 1 describes the jumper settings. Before selecting the jumper
settings, make sure that the enable input (ENx) is high.
Table 1. Jumper Settings
Jumper
State or
Connection
Function
J8 (EN1) High Enable VOUT1
J10 (PWR GD) VIN Pull to VIN
VOUT1 Pull to VOUT1
J12 (EN3) High Enable VOUT3
Low Disable VOUT3
J13 (SYNC) VIN Channel 2 forced pulse-width
modulation (FPWM) mode
GND Channel 2 hysteresis mode
External
frequency
Set frequency from 400 kHz to
1.4 MHz
Input Power Source Connection
Before connecting the power source to the ADP5310 evaluation
board, make sure the board is turned off. If the input power source
includes a current meter, use the meter to monitor the input
current as follows:
• Connect the positive (+) terminal of the power source to
the VIN terminal (J1) on the evaluation board.
• Connect the negative (−) terminal of the power source to
the GND terminal (J5) on the evaluation board.
If the power source does not include a current meter, connect a
current meter in series with the input source voltage as follows:
• Connect the positive (+) terminal of the power source to
the positive (+) terminal of the current meter.
• Connect the negative (−) terminal of the power source to
the GND terminal (J5) on the evaluation board.
• Connect the negative (−) terminal of the current meter to
the VIN terminal (J1) on the evaluation board.
Output Load Connection
Before connecting the load to the ADP5310 evaluation board,
make sure the board is turned off. If the load includes a current
meter or if the current is not measured, connect the load directly to
the evaluation board as follows:
• Connect the positive (+) load connection to the VOUT1
terminal (J2), VOUT2 terminal (J3), and VOUT3 terminal
(J9) on the evaluation board.
• Connect the negative (−) load connection to the GND
terminal (J4, J6, J11) on the evaluation board.
If a current meter is used, connect it in series with the load as
follows:
• Connect the positive (+) terminal of the current meter to
the VOUT1 terminal (J2), VOUT2 terminal (J3), and VOUT3
terminal (J9) on the evaluation board.
• Connect the negative (−) terminal of the current meter to
the positive (+) terminal of the load.
• Connect the negative (−) terminal of the load to the GND
terminal (J4, J6, J11) on the evaluation board.
Input and Output Voltmeter Connections
Measure the input and output voltages with voltmeters. Make
sure the voltmeters are connected to the appropriate test points
on the board. If the voltmeters are not connected to the correct
test points, the measured voltages may be incorrect due to the
voltage drop across the leads or due to the connections between
the board, the power source, and/or the load.
• Connect the positive (+) terminal of the input voltage
measuring voltmeter to the TP1 test point on the evaluation
board.
• Connect the negative (−) terminal of the input voltage
measuring voltmeter to the TP7 test point on the
evaluation board.
• Connect the positive (+) terminal of the output voltage
measuring voltmeter to the TP3, TP4, and TP9 test points
on the evaluation board.
• Connect the negative (−) terminal of the output voltage
measuring voltmeter to TP6, TP8, and TP13 test points on
the evaluation board.
Power On the Evaluation Board
After the power source and load are connected to the ADP5310
evaluation board, power the board on. If the input power source is
higher than 2.7 V, the Channel 1 output voltage rises to 1.8 V, and
the Channel 2 output voltage rises to 3.3 V by default.
