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CATAT71991 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 2.0A 380KHz 23V High Efficiency Step-Down DC/DC Converter - Chip Advanced Technology

भाग संख्या CATAT71991
समारोह 2.0A 380KHz 23V High Efficiency Step-Down DC/DC Converter
मैन्युफैक्चरर्स Chip Advanced Technology 
लोगो Chip Advanced Technology लोगो 
पूर्व दर्शन
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<?=CATAT71991?> डेटा पत्रक पीडीएफ

CATAT71991 pdf
2.0A 380KHz 23V High Efficiency Step-Down DC/DC Converter CAT71991
General Description
The CAT71991 is a high efficiency and up to 2A
output current step-down DC/DC converter series
that integrates a low on resistance NMOS on high
side. Including on the substrate with the listed
features is a high performance trans-conductance
error amplifier that provides tight voltage regulation
and accuracy under transient conditions. An under
voltage lockout circuit is built in to prevent start up
until the input voltage reaches to 4.75V. Other
features include an over current protection and
thermal shutdown. The CAT71991 is available in an
8 pins SOIC package.
Application
‹ Set-Top-Box, DVD, LCD Displays
‹ High Power LED Power Supply
‹ Distributed Power System
‹ Data comm. xDSL CPE
Pin Configuration
Features
‹ High Efficiency up to 92%
‹ 4.75V to 23V Wide Input Voltage Range
‹ Output Adjustable from 1.23 to 17V
‹ 2.0A Output Current
‹ 380kHz constant Frequency Operation
‹ Current Mode Control
‹ Over-temperature Protection
‹ Over Current Protection
‹ Under Voltage Lockout
‹ 25μA Shutdown Current
‹ CAT71991 with Soft Star Function
‹ SOP8 Package
‹ RoHS Compliant (100% Green available)
Ordering Information
Part Number
CAT71991CA
Package
SOP8
Ship
2500/ Tape & Reel
Typical Application
Efficiency Table
Efficiency VS Output Current at VIN=12V
100
90
80
70
60
50
40
0
5V
3.3V
1.8V
0.5 1 1.5
Output Current (A)
2
The CAT logo is a registered trademark of Chip Advanced Technology
2008 Chip Advanced Technology Inc. – All Right Reserved.
8/28/2008 Rev:0.85 2/16

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डाउनलोड[ CATAT71991 Datasheet.PDF ]


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अनुशंसा डेटापत्रक

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CATAT719912.0A 380KHz 23V High Efficiency Step-Down DC/DC ConverterChip Advanced Technology
Chip Advanced Technology


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