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EC9483 Datasheet دیتاشیت PDF دانلود

دیتاشیت - E-CMOS - 3A 380KHZ 28V PWM Buck DC/DC Converter

شماره قطعه EC9483
شرح مفصل 3A 380KHZ 28V PWM Buck DC/DC Converter
تولید کننده E-CMOS 
آرم E-CMOS 


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EC9483 شرح
EC9483
EC9483
3A 380KHZ 28V PWM Buck DC/DC Converter
General Description
The EC9483 is a 380 KHz fixed frequency
monolithic step down switch mode regulator with a
built in internal Power MOSFET. It achieves 3A
continuous output current over a wide input supply
range with excellent load and line regulation.
The device includes a voltage reference,
oscillation circuit, error amplifier, internal PMOS
and etc.
The PWM control circuit is able to adjust the duty
ratio linearly from 0 to 100%. An enable function,
an over current protection function and a short
c ircu i t protection function are built inside. An
internal compensation block is built in to minimize
external component count.
The EC9483 serves as ideal power supply units
for portable devices.
Features
z 3A Constant Output Current
z 140mRDSON Internal Power PMOSFET
Switch
z Up to 95% Efficiency
z Fixed 380KHz Frequency
z Wide 3.6V to 28V Input Voltage Range
z Output Adjustable from 1.222V to 26V
z Built in Frequency Compensation
z Built in Thermal Shutdown Function
z Built in Current Limit Function
z SOP8 Package is Available
z The minimum dropout up to 0.3V
Applications
z Portable DVD
z LCD Monitor / TV
z Battery Charger
z ADSL Modem
z Telecom / Networking Equipment
Function Block
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 10
2007/04/10
Free Datasheet http://www.Datasheet-PDF.com/

قانون اساسیصفحه 10
دانلود [ EC9483 دیتاشیت ]



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