TM
MP2307
3A, 23V, 340KHz Synchronous Rectified
Step-Down Converter
The Future of Analog IC Technology
TM
DESCRIPTION
The MP2307 is a monolithic synchronous buck
regulator. The device integrates 100mΩ
MOSFETS that provide 3A of continuous load
current over a wide operating input voltage of
4.75V to 23V. Current mode control provides
fast transient response and cycle-by-cycle
current limit.
An adjustable soft-start prevents inrush current
at turn-on and in shutdown mode, the supply
current drops below 1µA.
This device, available in an 8-pin SOIC
package, provides a very compact system
solution with minimal reliance on external
components.
FEATURES
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3A Continuous Output Current,
4A Peak Output Current
Wide 4.75V to 23V Operating Input Range
Integrated 100mΩ Power MOSFET Switches
Output Adjustable from 0.925V to 20V
Up to 95% Efficiency
Programmable Soft-Start
Stable with Low ESR Ceramic Output Capacitors
Fixed 340KHz Frequency
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
Thermally Enhanced 8-Pin SOIC Package
Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/Appliances
Notebook Computers
APPLICATIONS
EVALUATION BOARD REFERENCE
Board Number
EV2307DN-00A
Dimensions
2.0”X x 1.5”Y x 0.5”Z
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
INPUT
4.75V to 23V
C5
10nF
100
95
2
7
IN
EN
1
BS
SW
Efficiency vs
Load Current
V
IN
= 5V
V
IN
= 12V
V
IN
= 23V
90
EFFICIENCY (%)
3
8
MP2307
SS
GND
4
FB
COMP
6
OUTPUT
3.3V
3A
85
80
75
70
65
60
55
50
0.1
1.0
LOAD CURRENT (A)
10
5
C3
3.9nF
MP2307_EC01
MP2307_TAC01
MP2307 Rev. 1.7
3/14/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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