參數(shù)資料
型號: MP2370DJ-LF-Z
廠商: MONOLITHIC POWER SYSTEMS INC
元件分類: 穩(wěn)壓器
英文描述: 1.8 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO6
封裝: ROHS COMPLIANT, PLASTIC, MO-193AB, TSOT-23, 6 PIN
文件頁數(shù): 1/8頁
文件大?。?/td> 485K
代理商: MP2370DJ-LF-Z
MP2370
1.2A, 24V, 1.4MHz Step-Down
White LED Driver in a TSOT23-6
MP2370 Rev. 0.96
www.MonolithicPower.com
1
9/21/2007
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2007 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2370 is a monolithic step-down white
LED driver 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 MP2370 requires a minimum number of
readily available standard external components.
The MP2370 is available in a TSOT23-6 package.
FEATURES
1.2A Peak Output Current
0.35 Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
Capacitors
Also Work with Cap-less Configuration
Up to 87% 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
0.15V Sense Voltage
Available in a TSOT23-6 Package
APPLICATIONS
WLED Drivers
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
SW
FB
BST
GND
IN
EN
1
6
3
2
4
5
OFF ON
EFFICIENCY
(%)
0.1
60
70
80
90
100
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT CURRENT (A)
Efficiency vs
Output Current
Circuit as Figure 1
VIN=12V
VIN=20V
VIN=8V
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