EVM3805-QB-18-01A Datasheet, PDF (4/5 Pages) MPS Industries, Inc. – 6V, 0.6A Synchronous Step-Down Switcher Evaluation Board

EVM3805-QB-01A – 6V, 0.6A SYNC STEP-DOWN SWITCHER
QUICK START GUIDE (ADJUSTABLE OUTPUT)
The output voltage of this board is set externally which can be regulated as low as 0.6V by operating
from +2.5V to +6V input as the figure 5. The default output voltage of this board is set to 1.2V.
1. Connect the positive and negative terminals of the load to the VOUT and GND pins,
respectively.
2. Preset the power supply output between 2.5V and 6V, and then turn off the power supply.
3. Connect the positive and negative terminals of the power supply output to the VIN and GND
pins, respectively.
4. Turn the power supply on. The board will automatically start up.
5. The Output Voltage V_OUT can be changed by varying R2. Choose R1 to be around 40kΩ to
80kΩ. R2 is then given by:
R2

R1
V_{out  1}
0.6
Example: For V_OUT= 1V, R1=40kΩ, R2=60kΩ.
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Figure 5—Adjustable Version
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Figure 6—Fixed Version
EVM3805-QB-01A Rev.1.2
www.MonolithicPower.com
4
10/18/2013
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