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典型应用电路 Typical Application Circuits
FP6180 3A，23V，380KHz降压转换器
FP6180是一个内置在内部功率MOSFET的降压型稳压器。LT实现在宽输入供电电压范围内具有优异的负载和线路调整3A连续输出电流。电流模式能提供快速瞬态响应和简化环路稳定性。该设备包括逐周期电流限制和热关断保护。可调软启动，减少了在上电时的输入信号源的压力。该稳压器在关断模式下仅消耗20μA的电源电流。FP6180完成3A降压稳压器解决方案，需要一个现成的外部元件的数目。
˙ 3A输出电流˙可调软启动˙ 0.1Ωlnternal功率MOSFET开关˙与低ESR输出陶瓷电容器稳定˙高达95％的效率˙ 20μA关断模式电流˙固定380KHz频率˙ ˙逐周期超过热关断电流保护˙宽4.75至23V的工作lnput 范围 ˙从1.22至21V输出可调 ˙可用的SOP8裸露焊盘 ˙欠压锁定
FP6180
FP6180 3A, 23V ,380KHz Step-Down Converter
The FP6180 is a buck regulator with a built in internal power MOSFET. lt 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. Adjustable soft-start reduced the stress on the input source at power-on. The regulator only consumes 20μA supply current in shutdown mode. The FP6180 requires a minimum number of readily available external components to complete a 3A buck regulator solution.
˙3A Output Current
˙Adjustable Soft-Start
˙0.1Ω lnternal Power MOSFET Switch
˙Stable with Low ESR Output Ceramic Capacitors
˙Up to 95% Efficiency
˙20μA Shutdown Mode Current
˙Fixed 380KHz frequency
˙Thermal Shutdown
˙Cycle-by-Cycle Over Current Protection
˙Wide 4.75 to 23V operating lnput Range
˙Output Adjustable From 1.22 to 21V
˙Available SOP8 Exposed PAD
˙Under Voltage Lockout
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