厂商：Freescale
类别：16位单片机
厂商：Linear
类别：精准放大器
厂商：Panasonic
类别：微动开关
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：ATmega系列单片机
类别：板到板窄间距连接器
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特点 High Efficiency: Up to 95% Low Quiescent Current: Only 15μA with No Load 550kHz Constant Frequency Operation 2.65V to 6V Input Voltage Range V OUT from 0.8V to V IN , I OUT to 1.5A True PLL Frequency Locking from 350kHz to 750kHz Power Good Output Voltage Monitor Low Dropout Operation: 100% Duty Cycle Burst Mode? or Pulse Skipping OperationCurrent Mode Operation for Excellent Line and Load Transient ResponseShutdown Mode Draws <1μA Supply Current±2% Output Voltage AccuracyOvercurrent and Overtemperature ProtectedAvailable in 16-Lead SSOP Package典型应用典型应用描述The LTC?1875 is a high efficiency 1.5A monolithic synchronous buck regulator using a constant frequency, current mode architecture. Operating supply current is only 15μA with no load and drops to <1μA in shutdown. The input supply voltage range of 2.65V to 6V makes the LTC1875 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.The switching frequency is internally set to 550kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC1875 can be externally synchronized from 350kHz to 750kHz. Burst Mode operation is inhibited during synchronization or when the SYNC/MODE pin is pulled low.The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with a 0.8V feedback reference voltage. The LTC1875 is available in a 16-lead SSOP package.