厂商：Freescale
类别：16位单片机
厂商：Nichicon
类别：铝电解电容
厂商：Linear
类别：开关稳压器
厂商：
类别：保险丝
类别：自恢复PTC
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
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特点High Efficiency Operation (No Sense Resistor Required)Wide Input Voltage Range: 2.5V to 36VCurrent Mode Control Provides Excellent Transient ResponseHigh Maximum Duty Cycle (Typ 92%)±1% Internal Voltage Reference±2% RUN Pin Threshold with 100mV Hysteresis Micropower Shutdown: I Q = 10μA Programmable Operating Frequency (50kHz to 1MHz) with One External Resistor Synchronizable to an External Clock Up to 1.3 x f OSC User-Controlled Pulse Skip or Burst Mode? OperationInternal 5.2V Low Dropout Voltage Regulator Capable of Operating with a Sense Resistor for High Output Voltage Applications (V DS >36V) Small 10-Lead MSOP Package典型应用典型应用描述The LTC?3704 is a wide input range, current mode, positive-to-negative DC/DC controller that drives an N-channel power MOSFET and requires very few external components. Intended for low to high power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency.The IC’s operating frequency can be set with an external resistor over a 50kHz to 1MHz range, and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 2.5V and a low shutdown quiescent current of 10μA make the LTC3704 ideally suited for battery-operated systems.For applications requiring constant frequency operation, the Burst Mode operation feature can be defeated using the MODE/SYNC pin. Higher than 36V switch voltage applications are possible with the LTC3704 by connecting the SENSE pin to a resistor in the source of the power MOSFET.The LTC3704 is available in the 10-lead MSOP package.