EV1542DK-00A 반도체 회로 부품 판매점
Boost Converter
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 MPS |
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TM
The Future of Analog IC Technology TM
GENERAL DESCRIPTION
The EV1542DK-00A is the evaluation board for
the MP1542, a current mode step-up converter
with a 2A, 0.18Ω internal switch to provide a
highly efficient regulator with quick response.
The MP1542 can be operated at 700KHz or
1.3MHz allowing for easy filtering and low
noise. An external compensation pin gives the
user flexibility in setting loop dynamics, which
allows the use of small, low-ESR ceramic
output capacitors. Soft-start results in small
inrush current and can be programmed with an
external capacitor. The MP1542 operates from
an input voltage as low as 2.5V and can
generate 12V at up to 500mA from a 5V supply.
The MP1542 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload. The MP1542 is available in a low
profile 8-pin MSOP package.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
VIN
VOUT
IOUT
Value
2.5 – 6
8
400
Units
V
V
mA
EV1542DK-00A
700KHz/1.3MHz Boost Converter
with a 2A Switch
EVALUATION BOARD
FEATURES
• 2A, 0.18Ω, 25V Power MOSFET
• Uses Tiny Capacitors and Inductors
• Pin Selectable 700KHz or 1.3MHz Fixed
Switching Frequency
• Programmable Soft-Start
• Operates with Input Voltage as Low as 2.5V
and Output Voltage as High as 22V
• 12V at 500mA from 5V Input
• UVLO, Thermal Shutdown
• Internal Current Limit
• Available in an 8-Pin MSOP Package
APPLICATIONS
• LCD Displays
• Portable Applications
• Handheld Computers and PDAs
• Digital Still and Video Cameras
“MPS” and “Monolithic Power Systems”, are Trademarks of Monolithic
Power Systems, Inc.
EV1542DK-00A EVALUATION BOARD
Dimensions (2.0”X x 2.0”Y x 0.4”Z)
Board Number
EV1542DK-00A
MPS IC Number
MP1542DK
Efficiency vs
Load Current
95
90
85
80
75
70
65
60
55
50
1
VIN = 3.3V
VOUT = 8V
10 100 1000
LOAD CURRENT (mA)
MP1542-EC02
EV1542DK-00A Rev. 1.2
6/8/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
1
TM
EV1542DK-00A — 700KHz/1.3MHz BOOST CONVERTER WITH A 2A SWITCH
EVALUATION BOARD
EVALUATION BOARD SCHEMATIC
D1
VIN 1N5819HW-7
5V
JP1 1
3
2
6
7 IN
FSEL
5
SW 2
FB
OFF ON
3
EN
MP1542
8 SS
1
COMP
GND
4
C4
10nF
C3
2.2nF
C5
NS
VOUT
8V
EV1542_S01
EV1542DK-00A BILL OF MATERIALS
Qty Ref Value Description
2 C1, C2 10µF Ceramic Capacitor, 10V, X7R
1 C3 2.2nF Ceramic Capacitor, 50V, X7R
1 C4 10nF Ceramic Capacitor, 50V, X7R
1 C5
Not Stuffed
1 D1
Schottky Diodes, 40V, 1A
1 JP1
3-Pin Connector Header, 0.100
1 L1 4.7µH 2.01A, D53LC
1 R1 53.6kΩ Film Resistor, 1%
2 R2, R3 10kΩ Film Resistor, 1%
2 R4, R5 100kΩ Film Resistor, 5%
1 U1
DC-DC Converter
Package
1210
0805
0805
Manufacturer Manufacturer P/N
AVX
1210ZC106KAT2A
AVX
08055C222KAT2A
AVX
08055C103KAT2A
SOD123
SMD
0805
0805
0805
MSOP-8
Diodes Inc
Sullins
Toko
Panasonic
Panasonic
Panasonic
MPS
1N5819HW-7
PTC03SAAN
A915AY-4R7M
ERJ-6ENF5362V
ERJ-6ENF1002V
ERJ-6GEYJ104V
MP1542
EV1542DK-00A Rev. 1.2
6/8/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
2
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EV1542DK-00A converter
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[ EV1542DK-00A.PDF ]
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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