TM
EV2305DS-00A
4.75V to 23V IN, 2A OUT
Synchronous Buck Converter
EVALUATION BOARD
The Future of Analog IC Technology
TM
DESCRIPTION
The EV2305DS-00A is the evaluation board of
MPS’ MP2305 synchronous buck converter. It
has a wide supply range from 4.75V to 23V and
a continuous output current up to 2A. It features
synchronous rectification for high efficiency with
integrated high-side and low-side power
MOSFETs. The output voltage is preset to 3.3V,
but can be easily adjusted to other levels from
0.923V. Current mode control and integrated
power MOSFETs minimize component counts,
board area, and solution cost. Fault condition
protections include cycle-by-cycle current limiting,
thermal shutdown and under-voltage lockout.
Programmable soft-start reduces turn-on stress.
Small SO-8 package minimizes board area.
FEATURES
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Up to 2A Output Current
Wide 4.75V to 23V Operating Input Range
Monolithic Synchronous Buck with 130mΩ
High-Side and Low-Side FETs
Fixed 340KHz Frequency
All Ceramic Input and Output Capacitors
Programmable Soft-Start
Programmable Input Under Voltage Lockout
Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/ Appliances
Notebook Computers
APPLICATIONS
ELECTRICAL SPECIFICATIONS
Parameter
Supply Voltage
Output Voltage
Output Current
Symbol
V
IN
V
OUT
I
OUT
Value
4.75 to 23
3.3
0 to 2
Units
V
V
A
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV2305DS-00A EVALUATION BOARD
Efficiency vs
Load Current
100
95
90
V
OUT
= 3.3V
V
OUT
= 2.5V
EFFICIENCY (%)
85
80
75
70
65
60
55
50
(L x W x H) 2.0” x 1.5” x 0.5”
(5.0cm x 3.8cm x 1.2cm)
Board Number
EV2305DS-00A
EV2305DS-00A Rev. 1.5f
9/14/2005
0
0.5
1.0
1.5
2.0
LOAD CURRENT (A)
2.5
MP2305-EC01
MPS IC Number
MP2305DS
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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