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MPS MP4462 3.5A, 4MHz, 36V Step-Down Converter

The   MP4462   is   a   high   frequency   step-down   switching  regulator  with  an  integrated  internal  high-side    high    voltage    power    MOSFET.

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DESCRIPTION 

The   MP4462   is   a   high   frequency   step-down   switching  regulator  with  an  integrated  internal  high-side    high    voltage    power    MOSFET.    It    provides 3.5A output with current mode control for fast loop response and easy compensation.  

The wide 3.8V to 36V input range accommodates a   variety   of   step-down   applications,   including   those   in   an   automotive   input   environment.   A   120μA operational quiescent current allows use in battery-powered applications.  

High  power  conversion  efficiency  over  a  wide  load   range   is   achieved   by   scaling   down   the   switching   frequency   at   light   load   condition   to   reduce the switching and gate driving losses.  

The  frequency  foldback  helps  prevent  inductor  current   runaway   during   startup   and   thermal   shutdown     provides     reliable,     fault     tolerant     operation.  

In  some  applications,  such  as  AM  radio  and  ADSL   applications,   in   which   the   device   is   sensitive  to  frequency  band,  the  MP4462  can  avoid  the  related  EMI  problem  by  setting  the  frequency at 4MHz. 

The MP4462 is available in small 3x3mm QFN10 and SOIC8E packages.


FEATURES

•    120μA Quiescent Current

 •    Wide 3.8V to 36V Operating Input Range

 •    150mΩ Internal Power MOSFET 

•    Up to 4MHz Programmable Switching Frequency 

•    Ceramic Capacitor Stable 

•    Internal    Soft-Start    

•    Internally Set Current Limit without a Current Sensing Resistor 

•    Output Adjustable from 0.8V to 30V 

•     Available in 3x3mm QFN10 and SOIC8E Packages. APPLICATIONS 

•    High Voltage Power Conversion 

•    Automotive    Systems    

•    Industrial Power Systems 

•    Distributed    Power    Systems    

•    Battery Powered Systems

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