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7440530047 データシート(PDF) 1 Page - Monolithic Power Systems

部品番号 7440530047
部品情報  1.2A, 24V, 1.4MHz Step-Down Converter in a TSOT23-6
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メーカー  MPS [Monolithic Power Systems]
ホームページ  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

7440530047 データシート(HTML) 1 Page - Monolithic Power Systems

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MP2359
1.2A, 24V, 1.4MHz
Step-Down Converter in a TSOT23-6
MP2359 Rev. 1.1
www.MonolithicPower.com
1
6/23/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
TM
DESCRIPTION
The MP2359 is a monolithic step-down switch
mode converter with a built-in power MOSFET.
It achieves 1.2A peak 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.
The MP2359 requires a minimum number of
readily available standard external components.
The MP2359 is available in TSOT23-6 and
SOT23-6 packages.
EVALUATION BOARD REFERENCE
Board Number
Dimensions
EV2359DJ-00B
2.1”X x 1.9”Y x 0.4”Z
FEATURES
• 1.2A Peak Output Current
• 0.35Ω Internal Power MOSFET Switch
• Stable with Low ESR Output Ceramic
Capacitors
• Up to 92% Efficiency
• 0.1µA Shutdown Mode
• Fixed 1.4MHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Wide 4.5V to 24V Operating Input Range
• Output Adjustable from 0.81V to 15V
• Available in TSOT23-6 and SOT23-6
Packages
APPLICATIONS
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
WLED Drivers
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP2359
SW
FB
BST
GND
IN
EN
1
6
3
2
4
5
VOUT
3.3V @ 1.2A
CB
10nF
D1
B230A
VIN
12V
OFF ON
Efficiency vs
Load Currents
VIN = 12V
VIN = 24V
VOUT = 5V
100
90
80
70
60
50
40
30
20
10
0
LOAD CURRENT (A)
0.01
0.1
1
10


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