AIC2857F PDF Datasheet

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Description

This is Step-Down Converter. AIC2857F 2A 23V Synchronous Step-Down Converter FEATURES 2A Continuous Output Current Programmable Soft Start 130mΩ Internal Power MOSFET Switches Stable with Low ESR Output Ceramic Capaci- tors Up to 93% Efficiency <1 A Supply Current in Shutdown Mode Fixed 340KH- Frequency Thermal Shutdown Cycle by Cycle Over Current Protection Wide 4.75 to 23V Operating Input Range Output Adjustable from 0.925V to 12V Under Voltage Lockout APPLICATIONS Networking Systems such as Modems & Routers Distributed Power Systems Pre-Regulator for Linear Regulators. Set-top Box DESCRIPTION The AIC2857F is a synchronous step-down regulator with an integrated Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-bycycle current limiting and thermal shutdown. Adjustable soft.