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发布者:微桥 发布时间:2013-1-11 阅读:4359次    关键字: DC-DC
AX3821-1.6A,16V,600KHz Synchronous Buck Regulator


AX3821-1.6A,16V,600KHz Synchronous Buck Regulator  DataSheet

GENERAL
    The AX3821 is a monolithic synchronous buck regulator. The device integrates two 100mΩ MOSFETs, and provides 1.6A of continuous load current over a wide input voltage of 4.5V to 16V. Current mode control provides fast transient response and cycle-by-Cycle current limit. Internal soft-start prevents inrush current at turn on, and in shutdown mode the supply current drops to 1μA. This device, available in SOTSOT -23 -6L package, provides a very compact solution with minimal external components.

FEATURES
- 1.6A Output Current
- Wide 4.5V to 16V Operating Input Range
- Integrated 100mΩ Power MOSFET Switches
- Output adjust from VFB to 14V
- Internal compensation
- Up to 94% Efficiency
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 600KHz Frequency
- Cycle-by-Cycle Over Current Protection
- Thermal shutdown and short circuit protections

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