LT1940
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
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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 resistor...
