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参数资料
| 型号： | MP2259DJ |
| 厂商： | MONOLITHIC POWER SYSTEMS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.8 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | MO-193AB, TSOT-23, 6 PIN |
| 文件页数： | 1/9页 |
| 文件大小： | 354K |
| 代理商： | MP2259DJ |
MP2259
1A, 16V, 1.4MHz
Step-Down Converter
MP2259 Rev. 0.91
www.MonolithicPower.com
1
1/14/2008
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2008 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2259 is a monolithic integrated step-
down switch mode converter with an internal
power MOSFET. It achieves 1A 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.
The MP2259 requires a minimum number of
readily available standard external components.
The MP2259 is available in TSOT23-6 and
SOT23-6 packages.
FEATURES
1A Output Current
0.5 Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
Up to 92% Efficiency
0.1A Shutdown Mode
Fixed 1.4MHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.5V to 16V Operating Input Range
Output Adjustable from 0.81V to 14V
Available in TSOT23-6 and SOT23-6 Packages
APPLICATIONS
Hand Disk Drive
xDSL Modems Cable
Set-Top Box
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP2259
SW
FB
BST
GND
IN
EN
1
MP2259_TAC01
6
3
2
4
5
VOUT
5V @ 1A
C3
10nF
D1
MBR130
VIN
OFF ON
100
95
90
85
80
75
70
65
60
55
50
EFFICIENCY
(%)
10
100
1000
LOAD CURRENT (mA)
MP2259-EC01
Efficiency vs
Load Current
VOUT = 3.3V
VOUT = 5V
VIN = 12V
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相关代理商/技术参数 |
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