TM
EV1517DR-00B
3.3V, 1A Sepic
Evaluation Board
The Future of Analog IC Technology
TM
GENERAL DESCRIPTION
The EV1517DR-00B is a MP1517 evaluation board
that is configured to provide a regulated 3.3V output
at up to 1A from a 3V to 4.2V input. The output
voltage is adjustable by changing resistors on the
evaluation board. The high 1.1MHz switching
frequency allows for smaller external components
producing a compact solution for a wide range of
load currents. 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.
FEATURES
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Provides 3.3V, 1A Output from as Low as
3V Input
Over 80% Efficiency
Inherent Output Disconnect at Shutdown Mode
1.1MHz Switching Frequency
0.5µA Shutdown Current
Fully Assembled and Tested
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
3-4.2
3.3
1
Units
V
V
A
EV1517DR-00B EVALUATION BOARD
Efficiency vs
Load Current
90
80
V
IN
=4.2V
V
IN
=3V
V
IN
=3.6V
EFFICIENCY (%)
70
60
50
40
30
20
10
(L x W x H) 2.0” x 2.0” x 0.4”
(5cm x 5cm x 1cm)
Board Number
EV1517DR-00B
MPS IC Number
MP1517DR
0
1
10
100
1000
MP1517-EC01
LOAD CURRENT (mA)
EV1517DR-00B Rev. 1.0
12/21/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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MPS [ MONOLITHIC POWER SYSTEMS ]
