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EV3428-L-00A Datasheet(PDF) 6 Page - Monolithic Power Systems

Part No. EV3428-L-00A
Description  17A, 600kHz, 20V Wide Input Synchronous Boost Converter EV Board
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Maker  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
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EV3428-L-00A Datasheet(HTML) 6 Page - Monolithic Power Systems

   
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EV3428-L-00A―17A, 600kHz, 20V WIDE INPUT SYNCHRONOUS BOOST CONVERTER EV BOARD
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.
EV3428-L-00A Rev.1.1
www.MonolithicPower.com
6
11/5/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
QUICK START GUIDE
The output voltage of this board is set to 12V. The board layout accommodates most commonly used
inductors and output capacitors. With an input ranging from 3V to 10V, this board can provide load up
to 25W. To use this EVB for evaluation, you can do as below:
1. Preset Power Supply to between 3V and 10V.
2. Turn Power Supply off.
3. Preset Load to a value, for example, 1.5A.
4. Connect Power Supply terminals to:
a.
Positive (+): VIN
b.
Negative (–): GND
c.
Connect Load to:
d.
Positive (+): VOUT
e.
Negative (–): GND
5. Turn Power Supply on after making connections. The MP3428 will automatically startup to work.
The output voltage VOUT can be programmed by changing R2. And the value of R2 can be calculated
by the following formula:
FB
OUT
FB
V
R2 R1
VV
Where R1=300kΩ, and VFB=1.225V.
If EN function is preferred, apply a high level (>1.39V) turns on MP3428, low level ( <0.4V) turns off
MP3428. After being turned off, output voltage will be discharged to equal to Vin due to load.
The default configuration of this board is using external sensing resistor. To use the internal sensing
block, first shut off power supply, then connect MODE pin (find it by looking for R8 on the board) to
GND through R8 of which the value should be 0Ω. After power-on, MP3428 automatically uses internal
sensing resistor.


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