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Numéro de référence | EV0060 | ||
Description | Synchronous Rectified Step-Down Converter | ||
Fabricant | MPS | ||
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www.DataSheet4U.com
The Future of Analog IC Technology
EV0060 (MP1567)
1.2A, 6V, 800KHz Synchronous Rectified
Step-Down Converter
EVALUATION BOARD
GENERAL DESCRIPTION
The EV0060 is an evaluation board for the
MP1567, a 1.2A, 800KHz DC to DC converter
designed for low voltage applications requiring
high efficiency. Capable of providing output
voltages as low as 0.9V from a 3.3V supply
voltage, the MP1567 eliminates the need for a
5V rail, providing over 90% efficiency via
synchronous rectification and eliminating heat
issues in confined spaces. Soft-start operation
protects internal circuitry from hard turn on
issues. Switching at 800KHz reduces the size
of external components and thereby reduces
board space.
The MP1567 includes cycle-by-cycle current
limiting and under voltage lockout. Internal
power switches combined with the tiny 10-pin
QFN package provide a solution requiring a
minimum of space.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
VIN
VOUT
IOUT
Value
2.6 to 6
1.8
1.2
Units
V
V
A
FEATURES
• 1.2A Output Current
• Synchronous Rectified
• Internal 180mΩ and 220mΩ Power Switches
• VIN Range of 2.6V to 6V
• Over 90% Efficiency
• Zero Current Shutdown Mode
• Under Voltage Lockout Protection
• Soft-Start Operation
• Thermal Shutdown
• Internal Current Limit (Source & Sink)
• Tiny 10-Pin QFN Package
APPLICATIONS
• SOHO Routers, PCMCIA Cards, Mini PCI
• Handheld Computers, PDAs
• Cell Phones
• Digital Video Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology”, are Registered Trademarks
of Monolithic Power Systems, Inc.
EV0060 EVALUATION BOARD
Dimensions (2.5”X x 2.0”Y x 0.4”Z)
Board Number
EV0060
MPS IC Number
MP1567DQ
Efficiency vs
Load Current
100
90 VIN=3.3V
80
70
60 VIN=4V
50
40 VIN=5V
30
20
10 VOUT=1.8V
0
10 100 1000
LOAD CURRENT (mA)
MP1567_EC01
EV0060 Rev. 1.2
4/22/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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Pages | Pages 5 | ||
Télécharger | [ EV0060 ] |
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