TM
EV2358DS-00A
2A, 23V, 370KHz Step-Down Converter
Evaluation Board
The Future of Analog IC Technology
TM
DESCRIPTION
The EV2358DS-00A is the evaluation board for
the MP2358, a monolithic step-down switch
mode converter with a built in internal power
MOSFET. It achieves 2A continuous output
current over a wide input supply range with
excellent load and line regulation.
The MP2358 employs current mode operation
for fast transient response and loop
stabilization.
Its
Fault
condition
protection
includes
cycle-by-cycle current limiting and thermal
shutdown. In shutdown mode the regulator draws
23碌A of supply current. The Programmable soft-
start minimizes the inrush supply current and the
output overshoot at initial startup.
The MP2358 requires a minimum number of
readily available standard external components.
FEATURES
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2A Output Current
Stable with Low ESR Output Ceramic
Capacitors
Up to 95% Efficiency
Wide 4.75V to 23V Operating Input Range
Distributed Power Systems
Battery Charger
DSL Modems
Pre-Regulator for Linear Regulators
APPLICATIONS
鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Trademarks of Monolithic
Power Systems, Inc.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
V
IN
V
OUT
I
OUT
Value
4.75 鈥?23
3.3
2
Units
V
V
A
EV2358DS-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
(L x W x H) 2.3鈥?x 1.4鈥?x 0.5鈥?/div>
(cm x cm x cm)
Board Number
EV2358DS-00A
EV2358DS-00A Rev. 1.2
1/9/2006
MPS IC Number
MP2358DS
2.0
2.5
OUTPUT CURRENT (A)
MP2358_EC01
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2006 MPS. All Rights Reserved.
1
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