厂商：Freescale
类别：16位单片机
厂商：Littelfuse
类别：保险丝
厂商：Linear
类别：开关稳压器
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：
类别：RS232/RS562 收发器
类别：电压基准
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特点High EfficiencyConstant Frequency 550kHz Operation V IN Range: 2V to 10V Multiampere Output Currents OPTI-LOOP? Compensation Minimizes C OUT Selectable, Burst Mode OperationLow Dropout Operation: 100% Duty CycleSynchronizable up to 750kHz Current Mode Operation for Excellent Line and Load Transient Response Low Quiescent Current: 350μAShutdown Mode Draws Only 15μA Supply Current±1.9% Reference Accuracy Available in 8-Lead MSOP 典型应用典型应用描述The LTC1622 boasts a ±1.9% output voltage accuracy and consumes only 350μA of quiescent current. For applications where efficiency is a prime consideration and the load current varies from light to heavy, the LTC1622 can be configured for Burst Mode? operation. Burst Mode operation enhances low current efficiency and extends battery run time. Burst Mode operation is inhibited during synchronization or when the SYNC/MODE pin is pulled low to reduce noise and possible RF interference.High constant operating frequency of 550kHz allows the use of a small inductor. The device can also be synchronized up to 750kHz for special applications. The high frequency operation and the available 8-lead MSOP package create a high performance solution in an extremely small amount of PCB area.To further maximize the life of the battery source, the P-channel MOSFET is turned on continuously in dropout (100% duty cycle). In shutdown, the device draws a mere 15μA.