3.0A, 40V, 500kHz， Step-Down Converter  ZCC2467

DESCRIPTION

The ZCC2467 is a high frequency step-down switching regulator with integrated internal high-side, high voltage power MOSFET. It provides 3.0A output with current mode control for fast loop response and easy compensation.The wide 6V to 40V input range accommodates a variety of step-down applications, including those in automotive systems. A 100μA operational quiescent current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. The frequency foldback prevents inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. The ZCC2467 is available in thermally enhanced SOIC8 package.

FEATURES

• 100μA Quiescent Current

• Wide 6V to 40V Operating Input Range

• 150mΩ Internal Power MOSFET

• 500kHz Fixed Switching Frequency

• Ceramic Capacitor Stable

• Internal Soft-Start

• Precision Current Limit without a Current Sensing Resistor

• Up to 95% Efficiency

• Output Adjustable from 0.8V to 30V

• Available in SOIC8 with Exposed Pad Packages

APPLICATIONS

• Game Machines

• Automotive Systems

• Industrial Power Systems

• Distributed Power Systems

• Printer Systems

• Battery Powered Systems

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