EV2355DN-00A
4.75V to 23V In, 3A Out
Step-Down DC/DC Converter
Monolithic Power Systems
EVALUATION BOARD 鈥?INITIAL RELEASE
GENERAL DESCRIPTION
The EV2355DN-00A is the Evaluation Board for
MPS鈥?MP2355 Step-Down DC/DC Converter. It
features a wide supply range of 4.75V to 23V
and a continuous output current up to 3A. The
output voltage is set 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
8-pin SOIC package with exposed pad minimizes
board area and provides excellent thermal
management.
FEATURES
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Up to 3A Continuous Output Current
Wide 4.75V to 23V Operating Input Range
Monolithic Buck with 100m鈩?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
鈥淢PS鈥?and 鈥淢onolithic Power Systems鈥? 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 3
Units
V
V
A
EV2355DN-00A EVALUATION BOARD
Efficiency vs
Load Current
95
90
V
OUT
=5.0V
EFFICIENCY (%)
85
80
75
70
65
60
0
500 1000 1500 2000 2500 3000 3500
V
OUT
=2.5V
V
OUT
=3.3V
Dimensions (2.6鈥漍 x 1.9鈥漎 x 0.4鈥漐)
Board Number
EV2355DN-00A
MPS IC Number
MP2355
LOAD CURRENT (mA)
MP2355_EC01
01/05, Rev. 1.0
MPS Proprietary Information. 漏 2005 All Rights Reserved.
Unauthorized Photocopy and Duplication Prohibited.
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