LT3506IFE

Conv DC-DC 3.6V to 25V Step Down Dual-Out 0.8V to 23.25V 1.6A/1.6A 16Pin TSSOP EP

DESCRIPTION

The LT® 3506 is a dual current mode PWM step-down DC/DC converter with internal 2A power switches. Both convert ers are synchronized to a single oscillator and run with opposite phases, reducing input ripple current. The output voltages are set with external resistor dividers, and each regulator has independent shutdown and soft-start circuits.

FEATURES

■  Wide Input Voltage Range, 3.6V to 25V

■  Two 1.6A Output Switching Regulators with Internal Power Switches

■  Constant Switching Frequency

     LT3506: 575kHz

     LT3506A: 1.1MHz

■  Anti-Phase Switching Reduces Ripple

■  Accurate 0.8V Reference, ±1%

■  Independent Shutdown/Soft-Start Pins

■  Independent Power Good Indicators Ease Supply Sequencing

■  Uses Small Inductors and Ceramic Capacitors

■  Small 16-Lead Thermally Enhanced 5mm × 4mm DFN and TSSOP Surface Mount Packages

APPLICATIONS

■  Disk Drives

■  DSP Power Supplies

■  Wall Transformer Regulation

■  Distributed Power Regulation

■  DSL Modems

■  Cable Modems