厂商：Freescale
类别：16位单片机
厂商：Linear
类别：开关稳压器
厂商：Yageo
类别：芯片电阻
厂商：
类别：保险丝
类别：PhotoMOS(MOSFET输出光电耦合器)
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特点High Efficiency: Up to 96%Very Low Quiescent Current: Only 20μA1.25A Output Current2.5V to 5.5V Input Voltage Range2.25MHz Constant Frequency OperationNo Schottky Diode RequiredLow Dropout Operation: 100% Duty Cycle0.6V Reference Allows Low Output VoltagesShutdown Mode Draws ≤ 1μA Supply CurrentCurrent Mode Operation for Excellent Line andLoad Transient ResponseOvertemperature ProtectedLow Profile (1mm) ThinSOT and6-Lead (2mm × 3mm) DFN Packages典型应用典型应用描述描述 The LTC3564 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 20μA, dropping to ≤1μA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3564 ideally suited for single Li-Ion battery-powered or 3.3V to 5V input voltage applications. 100% duty cycle provides low drop- out operation, extending battery life in portable systems. Automatic Burst Mode operation increases efficiency at light loads, further extending battery runtime. Switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3564 is available in low profile (1mm) ThinSOT and 6-Lead (2mm × 3mm) DFN packages.