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LT3504 - Quad 40V/1A Step-Down Switching Regulator

General Description

The LT®3504 consists of four 1A output current buck regulators.

The LT3504 has a wide operating input range of 3.2V to 40V.

An on-chip boost regulator allows each channel to operate up to 100% duty cycle and eliminates the need for four external charge pump circuits.

Key Features

  • n Wide Input Range: 3.2V to 40V n Four 1A Outputs n 100% Duty Cycle Operation n Resistor-Programmed Constant Frequency n Short-Circuit Robust n Wide SYNC Range: 350kHz to 2.2MHz n Anti-Phase Switching Reduces Ripple n 800mV FB Voltage n Independent Run/Soft-Start Pins n Shutdown with UVLO n Internal Compensation n Thermal Shutdown n Tiny 28-Lead (4mm × 5mm) Thermally Enhanced QFN Package.