EV0060 (MP1567)
1.2A, 6V, 800KHz Synchronous Rectified
Step-Down Converter
The Future of Analog IC Technology
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.
FEATURES
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1.2A Output Current
Synchronous Rectified
Internal 180mΩ and 220mΩ Power Switches
V
IN
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
SOHO Routers, PCMCIA Cards, Mini PCI
Handheld Computers, PDAs
Cell Phones
Digital Video Cameras
Small LCD Displays
APPLICATIONS
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
V
IN
V
OUT
I
OUT
Value
2.6 to 6
1.8
1.2
Units
V
V
A
“MPS” and “The Future of Analog IC Technology”, are Registered Trademarks
of Monolithic Power Systems, Inc.
EV0060 EVALUATION BOARD
Efficiency vs
Load Current
100
90
80
EFFICIENCY (%)
V
IN
=3.3V
70
60
50
40
30
20
10
V
OUT
=1.8V
10
100
LOAD CURRENT (mA)
1000
0
V
IN
=5V
V
IN
=4V
Dimensions (2.5”X x 2.0”Y x 0.4”Z)
Board Number
EV0060
EV0060 Rev. 1.2
4/22/2005
MPS IC Number
MP1567DQ
MP1567_EC01
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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