EV2106DQ/DK-00A – 2.6V TO 15V IN, 1.5A OUT SYNCHRONOUS BUCK EV BOARD
QUICK START GUIDE
The output voltage of this board is set to 1.8V. The board layout accommodates most commonly used
inductors and output capacitors.
1. Attach positive end and negative end of load to OUT and GND pins, respectively.
2. Attach input voltage (2.6V ≤ VIN ≤ 13.5V) and input ground to IN and GND pins, respectively.
3. A pull-up resistor has connected the EN pin to the IN pin, so the MP2106 will startup
automatically without applying an external voltage to the EN pin.
4. The output voltage VOUT can be changed by varying R3. Calculate the new value using the
formula:
VOUT
R3 = R4 × (
− 1)
VFB
where VFB = 0.9V and R4 = 10kΩ.
For example, for VOUT = 2.5V:
VOUT
VFB
2.5V
0.9V
R3 = R4 × (
− 1) = 10kΩ × (
− 1) = 17.78kΩ ~ 17.8kΩ
for the closest standard 1% value.
See Maximum Duty Cycle limits to determine allowable output voltages.
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV2106DQ/DK-00A Rev. 1.3
11/18/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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