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부품번호 | EV0034 기능 |
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기능 | Step-Up Converter | ||
제조업체 | MPS | ||
로고 | |||
전체 4 페이지수
www.DataSheet4U.com
The Future of Analog IC Technology
DESCRIPTION
The EV0034 is a MP1527 evaluation board
configured to provide a regulated 12V output at
up to 300mA from a 2.6V input or higher. The
output voltage is adjustable from VIN to 25V by
changing resistors on the evaluation board.
The MP1527 has a high 1.3MHz switching
frequency that allows for smaller external
components, producing a compact solution for
medium-to-high current step-up, flyback, and
SEPIC applications.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
VIN
VOUT
IOUT
Value
2.6 – 12
12
300
Units
V
V
mA
EV0034
2A, 1.3MHz
Step-Up Converter
EVALUATION BOARD
FEATURES
• 2.6V Minimum Input Voltage
• 12V Output Voltage, Adjustable from VIN to 25V
• Up to 90% Efficiency
• 1.3MHz Switching Frequency
• Fully Assembled and Tested
APPLICATIONS
• SOHO Routers, PCMCIA Cards, Mini PCI
• Handheld Computers, PDAs
• Cell Phones, Digital and Video Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology”, are Trademarks of Monolithic
Power Systems, Inc.
EV0034 EVALUATION BOARD
(L x W x H) 2.5” x 2.0” x 0.4”
(6.4cm x 5.0cm x 1.0cm)
Board Number
EV0034
MPS IC Number
MP1527DR
Efficiency vs
Load Current
100
95 VOUT=12V
90
85
80 VOUT=18V
75
70
65
60
55 VIN=5V
50
1 10 100 1000
LOAD CURRENT (mA)
EV0034_EC01
EV0034 Rev. 1.1
2/16/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
1
EV0034 – 2A, 1.3MHz STEP-UP CONVERTER
EVALUATION BOARD
QUICK START GUIDE
The EV0034 is configured to produce a fixed 12V output voltage from an input voltage ranging from
2.6V to 12V:
1. Connect the positive and negative terminals of the load to the OUT and GND pins, respectively.
2. Preset the power supply output to between 2.6V and 12V, then turn it off.
3. Connect the positive and negative terminals of the power supply output to the IN and GND pins,
respectively.
4. Connect the IN pin of the chip to the regulator’s input supply VIN for bootstrapped operation
(boot-strapped operation is required for VIN of less than 3V) through the IC Power jumper.
5. Turn the power supply on. The board is set up for automatic startup. Shunt the ENABLE jumper
to disable the circuit. EN may be driven with an external digital signal to enable/disable the
circuit.
6. Connect VIN to the input power source and apply a 2.6V to 12V voltage.
7. To enable the MP1527 by an external signal, connect a 0V to 2V signal to the EN input. A low
voltage at EN turns off the MP1527, a high voltage turns it on.
8. The output voltage VOUT can be altered by changing the value of R2. Determine the new value
of R2 using the following formula:
R2
=
R3
×
⎜⎜⎝⎛
VOUT
VFB
− 1⎟⎟⎠⎞
Where VFB=1.22V and R3 remains 10kΩ.
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.
EV0034 Rev. 1.1
2/16/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
4
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다운로드 | [ EV0034.PDF 데이터시트 ] |
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