EV2354DS-00A
4.75V to 23V IN, 2A OUT, 380KHz
Step-Down DC/DC Converter
Monolithic Power Systems
EVALUATION BOARD
GENERAL DESCRIPTION
The EV2354DS-00A is the Evaluation Board for
MPS’ MP2354 Step-Down DC/DC Converter. It
features a wide supply range of 4.75V to 23V
and a continuous output current up to 2A. The
output voltage is preset to 3.3V, but can be
easily adjusted to other levels from 1.22V. A
380KHz high switching frequency allows the
use of small, low cost capacitors and inductors.
Current mode control and an integrated power
MOSFET minimize component count, board area,
and solution cost. Fault condition protection
includes cycle-by-cycle current limiting, thermal
shutdown, and under-voltage lockout. Internal
soft-start reduces the turn-on stress. The small
but thermally enhanced 8-pin SOIC package
minimizes board area and provides excellent
thermal management.
FEATURES
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Up to 2A Continuous Output Current
Wide 4.75V to 23V Operating Input Range
Monolithic Buck with 180mΩ Internal FET
Fixed 380KHz Frequency
All Ceramic Input and Output Capacitors
Programmable Soft-Start
Programmable Input Under-Voltage Lockout
Distributed Power Systems
Battery Chargers
Pre-Regulator for Linear Regulators
APPLICATIONS
“MPS” and “Monolithic Power Systems”, are Registered Trademarks of
Monolithic Power Systems, Inc.
ELECTRICAL SPECIFICATION
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
EV2354DS-00A EVALUATION BOARD
Efficiency vs
Output Current
95
90
5.0V
3.3V
2.5V
EFFICIENCY (%)
85
80
75
70
65
60
0
0.5
1.0
1.5
Dimensions (2.6”X x 1.9”Y x 0.4”Z)
Board Number
EV2354DS-00A
EV2354DS-00A Rev. 1.0
1/26/2005
2.0
2.5
OUTPUT CURRENT (A)
MP2354_TAC_EC01
MPS IC Number
MP2354
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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