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LT1940

Linear Technology
Part Number LT1940
Manufacturer Linear Technology
Description 1.1MHz Step-Down Switching Regulator
Published Mar 22, 2005
Detailed Description U U FEATURES s Wide Input Voltage Range LT1940: 3.6V to 25V LT1940L: 3.6V to 7V s Two 1.4A Output Switching Regulators ...
Datasheet PDF File LT1940 PDF File

LT1940
LT1940

Overview
U U FEATURES s Wide Input Voltage Range LT1940: 3.
6V to 25V LT1940L: 3.
6V to 7V s Two 1.
4A Output Switching Regulators with Internal Power Switches s Constant 1.
1MHz Switching Frequency s Anti-Phase Switching Reduces Ripple s Independent Shutdown/Soft-Start Pins s Independent Power Good Indicators Ease Supply Sequencing s Uses Small Inductors and Ceramic Capacitors s Small 16-Lead Thermally Enhanced TSSOP Surface MUount Package APPLICATIO S s Disk Drives s DSP Power Supplies s Wall Transformer Regulation s Distributed Power Regulation s DSL Modems s Cable Modems , LTC and LT are registered trademarks of Linear Technology Corporation.
LT1940/LT1940L Dual Monolithic 1.
4A, 1.
1MHz Step-Down Switching Regulator DESCRIPTIO The LT®1940 is a dual current mode PWM step-down DC/DC converter with internal 2A power switches.
Both converters are synchronized to a single 1.
1MHz oscillator and run with opposite phases, reducing input ripple current.
The output voltages are set with external resisto...


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