MP1527DR [MPS]
2A, 1.3MHz Step-Up Converter; 2A， 1.3MHz升压转换器
| 型号： | MP1527DR |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | 2A, 1.3MHz Step-Up Converter |
| 文件： | 总4页 (文件大小：175K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EV0034
2A, 1.3MHz
Step-Up Converter
The Future of Analog IC Technology
EVALUATION BOARD
DESCRIPTION
FEATURES
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.
•
•
•
•
•
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
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.
APPLICATIONS
•
•
•
•
SOHO Routers, PCMCIA Cards, Mini PCI
Handheld Computers, PDAs
Cell Phones, Digital and Video Cameras
Small LCD Displays
ELECTRICAL SPECIFICATIONS
“MPS” and “The Future of Analog IC Technology”, are Trademarks of Monolithic
Power Systems, Inc.
Parameter
Symbol
Value
2.6 – 12
12
Units
Input Voltage
Output Voltage
Output Current
VIN
V
VOUT
IOUT
V
300
mA
EV0034 EVALUATION BOARD
Efficiency vs
Load Current
100
V
=12V
=18V
OUT
95
90
85
80
75
70
65
60
55
50
V
OUT
(L x W x H) 2.5” x 2.0” x 0.4”
(6.4cm x 5.0cm x 1.0cm)
V =5V
IN
1
10
100
1000
Board Number
MPS IC Number
MP1527DR
LOAD CURRENT (mA)
EV0034_EC01
EV0034
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
EVALUATION BOARD SCHEMATIC
IN
FAULT
GND
C8
10nF
U1
MP1527
PGND
PGND
SW
COMP
EN
C2
4.7nF
C1
NS
D1
MBR0520L
BP
C3
10nF
SW
EN
OUT
GND
C5
NS
R6
NS
C9
10nF
Output
IC Power
Input
ENABLE
GND
IN
J1
IN
C7
NS
GND
EV0034_S01
EV0034 BILL OF MATERIALS
Qty
3
Ref
C1, C5, C7
C2
Value
Description
Package Manufacturer: P/N
No Stuff
1
4.7nF
10nF
10µF
1µF
Ceramic Capacitor, 50V, X7R
Ceramic Capacitor, 50V, X7R
Ceramic Capacitor, 16V, X5R
Ceramic Capacitor, 16V, X7R
0805
0805
1210
0603
AVX: 08055C472KAT2A
AVX: 08055C103KAT2A
AVX: 1210YD106KAT2A
TDK: C1608X7R1C105K
3
C3, C8, C9
C4, C6
C10
2
1
1
D1
Schottky Diode, 0.5A, 20V, SOD-123
SOD-123 Fairchild: MBR0520L
Sumida:
SMD
1
1
1
1
1
L1
R1
R2
R3
R4
5.0µH
Inductor, 2.9A
CDRH6D38-5R0NC
Panasonic:
0805
5.6kΩ
Resistor, 5%
ERJ-6GEYJ562V
Panasonic:
0805
90.9kΩ Resistor, 1%
ERJ-6ENFJ9092V
Panasonic:
0805
10kΩ
100kΩ
470kΩ
Resistor, 1%
Resistor, 5%
ERJ-6ENFJ1002V
Panasonic:
0805
ERJ-6GEYJ104V
Panasonic:
0805
2
1
1
R5, R7
R6
Resistor, 5%
No Stuff
ERJ-6GEYJ474V
Step-Up Converter, 2A, Fixed
Frequency
U1
MPS: MP1527DR
EV0034 Rev. 1.1
2/16/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
2
EV0034 – 2A, 1.3MHz STEP-UP CONVERTER
EVALUATION BOARD
PRINTED CIRCUIT BOARD LAYOUT
Figure 1—Top Silk Layer
Figure 2—Top Layer
Figure 3—Bottom Layer
EV0034 Rev. 1.1
2/16/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
3
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:
⎛
⎜
⎜
⎞
VOUT
VFB
⎟
− 1
R2 = R3 ×
⎟
⎝
⎠
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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