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參數(shù)資料
| 型號： | EV1593DN-00A |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 3A, 28V, 385KHz Step-Down Converter |
| 中文描述： | 第3A，28V的，385KHz降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 326K |
| 代理商： | EV1593DN-00A |
The Future of Analog IC Technology
MP1593
3A, 28V, 385KHz
Step-Down Converter
MP1593 Rev. 1.9
9/14/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
TM
DESCRIPTION
The MP1593 is a step-down regulator with an
internal Power MOSFET. It achieves 3A of
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. An
adjustable soft-start reduces the stress on the
input source at startup. In shutdown mode the
regulator draws 20μA of supply current.
The MP1593 requires a minimum number of
readily
available
external
providing a compact solution.
EVALUATION BOARD REFERENCE
Board Number
EV1593DN-00A
components,
Dimensions
2.1”X x 1.3”Y x 0.4”Z
FEATURES
3A Output Current
Programmable Soft-Start
100m
Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
Up to 95% Efficiency
20
μ
A Shutdown Mode
Fixed 385KHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.75V to 28V Operating Input Range
Output Adjustable from 1.22V
Under-Voltage Lockout
Available in 8-Pin SOIC Package
APPLICATIONS
Distributed Power Systems
Battery Chargers
Pre-Regulator for Linear Regulators
Flat Panel TVs
Set-Top Boxes
Cigarette Lighter Powered Devices
DVD/PVR Devices
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
INPUT
4.75V to 28V
OUTPUT
3.3V
3A
C3
8.2nF
D1
B340A
C5
10nF
MP1593
BS
IN
FB
SW
SS
GND
COMP
EN
C6
(optional)
1
3
5
6
4
8
7
2
OFF ON
E
100
95
90
85
80
75
70
65
60
55
50
LOAD CURRENT (A)
Efficiency vs
Load Current
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V
IN
= 9V
V
IN
= 12V
V
IN
= 24V
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