厂商：Freescale
类别：16位单片机
厂商：Linear
类别：功率放大器
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：EEPROM
类别：ATmega系列单片机
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特点No Current Sense Resistors RequiredOut-of-Phase Controllers Reduce Required Input CapacitanceTracking Function Wide V IN Range: 2.75V to 9.8V Constant Frequency Current Mode Operation0.6V ±1.5% Voltage ReferenceLow Dropout Operation: 100% Duty CycleTrue PLL for Frequency Locking or AdjustmentSelectable Burst Mode?/Forced Continuous OperationAuxiliary Winding RegulationInternal Soft-Start CircuitryPower Good Output Voltage MonitorOutput Overvoltage Protection Micropower Shutdown: I Q = 9μA Tiny Low Profile (4mm x 4mm) QFN and Narrow SSOP Packages典型应用典型应用描述The LTC?3736 is a 2-phase dual synchronous step-down switching regulator controller with tracking that drives external complementary power MOSFETs using few external components. The constant frequency current mode architecture with MOSFET VDS sensing eliminates the need for sense resistors and improves efficiency. Power loss and noise due to the ESR of the input capacitance are minimized by operating the two controllers out of phase.Burst Mode operation provides high efficiency at light loads. 100% duty cycle capability provides low dropout operation, extending operating time in battery-powered systems.The switching frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC3736 switching frequency can be externally synchronized from 250kHz to 850kHz. Burst Mode operation is inhibited during synchronization or when the SYNC/FCB pin is pulled low in order to reduce noise and RF interference. Automatic softstart is internally controlled.The LTC3736 is available in the tiny thermally enhanced (4mm x 4mm) QFN package or 24-lead SSOP narrow package.