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发布者:微桥 发布时间:2011-6-28 阅读:5269次    关键字: AX3484 MP1484 3A DC-DC
AX3484-3A,23V,340KHz Synchronous Buck Converter


AX3484-3A,23V,340KHz Synchronous Step-Down Converter DataSheet
 
General Description  

    The AX3484 is a synchronous buck regulator with integrated two 85m power MOSFETs. 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 device includes cycle-by-cycle current limiting and thermal shutdown protection. The regulator only consumes 1A supply current in shutdown mode. The FP6193 requires a minimum number of readily available external components to complete a 3A buck regulator solution with minimal external components.

Features  

3A Output Current
85m Internal Power MOSFET Switches
Stable with Low ESR Output Ceramic Capacitors Up to 93% Efficiency
1A Shutdown Mode Current
Programmable Soft-Start
Fixed 340KHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Wide 4.75V to 23V Operating Input Range
Output Adjustable From 0.923V to 20V
Available SOP-8L (EP) Package
Input Under Voltage Lockout

 

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