EV2361DK/DQ-00A
2A, 1.4MHz Step-Down Converter
Evaluation Board
EV2361DK/DQ-00A Rev. 1.3f www.MonolithicPower.com 1
10/5/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
TM
DESCRIPTION
The EV2361DK/DQ-00A is the evaluation board
for the MP2361, a monolithic step down switch
mode converter with a built in internal power
MOSFET. The MP2361 achieves 2A
continuous output current over a wide input
supply range with excellent load and line
regulation.
Current mode operation provides fast transient
response and eases loop stabilization.
Fault condition protection includes cycle-by-cycle
current limiting and thermal shutdown. In
shutdown mode the regulator draws 20µA of
supply current. Programmable soft-start
minimizes the inrush supply current and the
output overshoot at initial startup.
The MP2361 requires a minimum number of
readily available standard external components.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
4.75 to 23 V
Output Voltage V
OUT
3.3 V
Output Current
(1)
I
OUT
2 A
Note:
1) The maximum output current may be less than 2A if
V
OUT
>60% of V
IN
.
FEATURES
• 2A Output Current with QFN Package
• Up to 90% Efficiency
• 20µA Shutdown Mode
• Fixed 1.4MHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Wide 4.75V to 23V Operating Input Range
• Output Adjustable from 0.92V to 16V
• Programmable Under Voltage Lockout
APPLICATIONS
• Distributed Power Systems
• Set Top Boxes
• DSL Modems
• Pre-Regulator for Linear Regulators
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV2361DK/DQ-00A EVALUATION BOARD
(L x W x H) 2.1” x 1.3” x 0.4”
(5.3cm x 3.3cm x 1.0cm)
Board Number MPS IC Number
EV2361DK/DQ-00A MP2361DK/DQ
V
OUT
=5V
V
OUT
=2.5V
V
OUT
=3.3V
100
90
80
70
60
50
EFFICIENCY (%)
0 2.00.5 1.0 1.5
LOAD CURRENT (A)
MP2361-EC01
Efficiency vs
Load Current
