EV1593DN-00A (MP1593)
4.75V to 28V Input, Up to 3A Output
Step-Down DC/DC Converter
Monolithic Power Systems
EVALUATION BOARD - INITIAL RELEASE
GENERAL DESCRIPTION
The EV1593DN-00A is the Evaluation Board for
MPS’ MP1593 Step-Down DC/DC Converter. It
features a wide supply range of 4.75V to 28V
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 385KHz
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 3A Output Current
Wide 4.75 to 28V Operating Input Range
Monolithic Buck with 100mΩ Internal FET
Fixed 385KHz Frequency
All Ceramic Input and Output Capacitors
Programmable Soft-Start
Programmable Input Under-Voltage Lockout
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
APPLICATIONS
, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC
Technology” 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 – 28
3.3
0–3
Units
V
V
A
EV1593DN-00A EVALUATION BOARD
Efficiency vs
Load Current
100
95
90
V
IN
= 9V
V
IN
= 24V
V
IN
= 12V
EFFICIENCY (%)
85
80
75
70
65
60
55
50
0
(2.1”X x 1.3”Y x 0.4”Z)
Board Number
EV1593DN-00A
MPS IC Number
MP1593
500 1000 1500 2000 2500 3000 3500
LOAD CURRENT (mA)
EV1593_TAC _EC01
08/04, Rev. 1.0
www.MonolithicPower.com
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