AIC2802中文资料3A 23V Synchronous PWM Step-Down Converter with Low Dropout Voltage Output数据手册AIC规格书

描述 Description

The AIC2802 is a synchronous step-down regulator with an integrated Power MOSFET and extra Power MOSFET to control coutput voltage2. It 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. The Output Voltage1 adjusted by R1, R2 and Output Voltage 2 adjusted by R3, R4.

Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. Internal soft-start reduces the stress on the input source and the output overshoot at turn-on. In shutdown mode, the regulator draws 1uA or less of supply current.

The AIC2802 is available in SOP-8E Package.

特性 Features

• 3A Continuous Output Current
• internal Soft Start
• Up to 90% Efficiency for Heavy Load (Vin=12V, Vout=3.3V, Iout=3.0A)
• Low Rds(on) Internal Switches: 150mOhm and 120mOhm
• Stable with Low ESR Output Ceramic Capacitors
• Up to 93% Efficiency
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应用 Application

• Networking Systems
• Distributed Power Systems
• Pre-Regulator for Linear Regulators
• LCD TV, LCD Monitor, DPF
• Portable AV Equipment
• Note Book PC Applications
• PC Peripherals
• Set-top Box