參數(shù)資料
型號(hào)： MBRS240L
廠商： Monolithic Power Systems, Inc.
英文描述： 2A, 32V, 330KHz Step-Down Converter
中文描述： 第2A，32V的，330KHz降壓轉(zhuǎn)換器
文件頁(yè)數(shù)： 1/11頁(yè)
文件大?。?/td> 261K
代理商： MBRS240L
MP1591
2A, 32V, 330KHz
Step-Down Converter
MP1591 Rev. 2.3
9/27/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP1591 is a high voltage step-down
converter ideal for automotive power adapter
battery chargers. Its wide 6.5V to 32V input
voltage range covers the automotive battery’s
requirements and it achieves 2A continuous
output for quick charge capability.
Current mode operation provides fast transient
response and eases loop stabilization. Fault
protection
includes
cycle-by-cycle
limiting and thermal shutdown. In shutdown
mode, the converter draws only 20μA of supply
current.
current
The MP1591 requires a minimum number of
readily available external components to
complete a 2A step-down DC to DC converter
solution.
EVALUATION BOARD REFERENCE
Board Number
EV0020
Dimensions
2.1”X x 1.4”Y x 0.5”Z
FEATURES
Wide 6.5V to 32V Input Operating Range
34V Absolute Maximum Input
2A Output Current
120m
Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
Up to 95% Efficiency
20μA Shutdown Mode
Fixed 330KHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Output Adjustable From 1.23V to 21V
Under Voltage Lockout
Reference Voltage Output
Available in 8-Pin SOIC Packages
APPLICATIONS
Automotive Power Adapters
PDA and Cellular Phone Battery Chargers
Distributed Power Systems
Automotive Aftermarket Electronics
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
INPUT
6.5V to 32V
OPEN
NOT USED
OUTPUT
2.5V
2A
C4
4.7nF
D1
C2
10nF
MP1591
BS
IN
FB
SW
REF
GND
COMP
EN
1
3
5
6
4
8
7
2
C3
OPEN
OFF ON
100
90
80
70
60
50
40
30
20
E
0
0.5
LOAD CURRENT (A)
1
1.5
2
Efficiency vs
Load Current
V
OUT
=5V
V
OUT
=3.3V
V
IN
=12V
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