AIC2858概述：3A，23V，340KHz同步降压DC-DC
The AIC2858 is a synchronous step-down regulator with an integrated Power MOSFET. AIC2858 achieves 3A 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.
AIC2858 Fault condition protection includes cycle-bycycle current limiting and thermal shutdown. AIC2858 Adjustable soft-start reduces the stress on the input source and the output overshoot at turnon. In shutdown mode, the regulator draws 1μA or less of supply current.The AIC2858 is available in a SOP-8 with Exposed Pad Package.

AIC2858技术特性
•3A Continuous Output Current
•Programmable Soft Start
•100mΩ Internal Power MOSFET Switches
•Stable with Low ESR Output Ceramic Capacitors
•Up to 95% Efficiency
•<1μA Supply Current in Shutdown Mode
•Fixed 340KHz 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

AIC2858应用领域
•Networking Systems such as Modems & Routers
•Distributed Power Systems
•Pre-Regulator for Linear Regulators.
•Set-top Box