EV2354DS-00A Datasheet, PDF (1/4 Pages) Monolithic Power Systems – 4.75V to 23V IN, 2A OUT, 380KHz Step-Down DC/DC Converter

Monolithic Power Systems
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.
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
4.75V to 23V IN, 2A OUT, 380KHz
Step-Down DC/DC Converter
EVALUATION BOARD
FEATURES
• 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
APPLICATIONS
• Distributed Power Systems
• Battery Chargers
• Pre-Regulator for Linear Regulators
“MPS” and “Monolithic Power Systems”, are Registered Trademarks of
Monolithic Power Systems, Inc.
EV2354DS-00A EVALUATION BOARD
Dimensions (2.6”X x 1.9”Y x 0.4”Z)
Board Number
MPS IC Number
EV2354DS-00A
MP2354
Efficiency vs
Output Current
95
90
5.0V
85
3.3V
80
2.5V
75
70
65
60
0
0.5 1.0 1.5 2.0 2.5
OUTPUT CURRENT (A)
MP2354_TAC_EC01
EV2354DS-00A Rev. 1.0
www.MonolithicPower.com
1
1/26/2005
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© 2005 MPS. All Rights Reserved.