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PDF ( 数据手册 , 数据表 ) MP9141

零件编号 MP9141
描述 Monolithic step-down switch mode converter
制造商 HUAFUQIN ELECTRONICS
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MP9141 数据手册, 描述, 功能
SHENZHEN HUAFUQIN ELECTRONICS CO.,LTD
MP9141
DESCRIPTION
The MP9141 is a monolithic step-down switch
mode converter with a built in internal power
MOSFET. It achieves 2A continuous output cur-
rent over a wide input supply range with excel-
lent load and line regulation.
TheMP9141requires a minimum number of
readily available standard external components.
Current mode operation provides fast transient
response and eases loop stabilization.
Fault condition protection includes cycle-by-
cycle current limiting and thermal shutdown. In
shutdown mode the regulator draws 25µA of
supply current.
FEATURES
2A Output Current
0.22Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic Ca-
pacitors
Up to 95% Efficiency
25µA Shutdown Mode
Fixed 450KHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.75 to 25V Operating Input Range
Output Adjustable from 1.22V to 21V
Programmable Under Voltage Lockout
APPLICATIONS
Distributed Power Systems
Battery Chargers
Pre-Regulator for Linear Regulators
PC Monitors
4.75 to 25
MP9141
PACKAGE REFERENCE
Part number
MP9141
MP9141
Package
SOIC8
PDIP8
Temperature
–40°C to +125°C
–40°C to +125°C
http://www.hfq123.com







MP9141 pdf, 数据表
SHENZHEN HUAFUQINELECTRONICS CO.,LTD
tion (when (VOUT/ VIN) >65%) and high output
voltage (VOUT>12V) applications
5
TYPICAL APPLICATION CIRCUITS
MP9141
Figure 2 - External Bootstrap Diode
MP9141
Figure 3—Application Circuit for -5V Supply
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