TM
EV1517DR-00A
3A, 25V, 1.1MHz
Step-Up Converter
EVALUATION BOARD
The Future of Analog IC Technology
TM
GENERAL DESCRIPTION
The EV1517DR-00A is the evaluation board for
the MP1517, a 3A, fixed frequency step-up
converter ideal for medium-to-high current
step-up applications. The high 1.1MHz
switching frequency allows for smaller external
components producing a compact solution for
size constrained cameras, PDAs and cell
phones. The low 0.7V feedback voltage offers
higher efficiency in white LED driver
applications including cell phone camera flash.
The MP1517 regulates the output voltage up to
25V with efficiencies greater than 90%.
Soft-start, cycle-by-cycle current limiting, and
input
under
voltage
lockout
prevent
overstressing or damage to sensitive external
circuitry at startup and output short-circuit
conditions. Current-mode regulation and
external compensation components allow the
MP1517 control loop to be optimized over a
wide variety of input voltage, output voltage,
and load current conditions. The MP1517 is
available in the thermally enhanced QFN16
(4mm x 4mm) package.
FEATURES
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4A Peak Current Limit
Low 700mV Feedback Threshold
Internal 150mΩ Power Switch
Input Range of 2.6V to 25V
Over 90% Efficiency
Zero Current Shutdown Mode
Under Voltage Lockout Protection
Open Load Protection
Soft-Start Operation
Thermal Shutdown
Tiny 4mm x 4mm 16-Pin QFN Package
Boost and SEPIC Regulators
Handheld Computers
Cell Phone Camera Flash, PDAs
Digital Still and Video Cameras
APPLICATIONS
“MPS” and “The Future of Analog IC Technology”, are Trademarks of Monolithic
Power Systems, Inc.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
V
IN
V
OUT
I
OUT
Value
5
12
1
Units
V
V
A
EV1517DR-00A EVALUATION BOARD
Efficiency vs
Load Current
100
95
90
V
OUT
= 12V
EFFICIENCY (%)
85
80
75
70
65
60
55
50
1
V
OUT
= 18V
V
IN
= 5V
10
100
LOAD CURRENT (mA)
1000
MP1517-EC01
Dimensions (2.0”X x 2.0”Y x 0.4”Z)
Board Number
EV1517DR-00A
EV1517DR-00A Rev. 1.0
6/8/2005
MPS IC Number
MP1517DR
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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