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：微动开关
厂商：Murata
类别：片状电感器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
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特点 Step-Down Controller Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced NoisePower Good Output Voltage Indicator OPTI-LOOP? Compensation Minimizes C OUT DC Programmed Fixed Frequency 150kHz to 300kHz Wide V IN Range: 3.5V to 36V Operation Very Low Dropout Operation: 99% Duty CycleAdjustable Soft-Start Current RampingLatched Short-Circuit Shutdown with Defeat OptionRemote Output Voltage Sense and OV Protection5V and 3.3V Standby RegulatorsSelectable Const. Freq. or Burst Mode? Operation Step-Up Regulator High Operating Switching Frequency of 1.2MHz Low Internal V CESAT Switch: 400mV @ 1A, V IN = 3V Wide V IN Range: 2.6V to 16V Operation High Output Voltage: Up to 34V典型应用描述The LTC?1876 is a high performance triple output switching regulator. It incorporates a dual step-down switching controller that drives all N-channel synchronous power MOSFET stages. A step-up regulator with an internal 1A, 36V switch provides the third output.The step-down controllers minimize power loss and noise by operating the output stage of each controller out of phase. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. A RUN/SS pin for each controller provides both soft-start and an optional timed, short-circuit shutdown that can be configured to latch offone or both controllers. Current foldback provides additional short-circuit protection. In an overvoltage condition, the bottom MOSFET is latched on until V OUT returns to normal. The FCB pin can be used to inhibit Burst Mode operation or to enable regulation of a secondary output voltage.The step-up regulator operates at 1.2MHz, allowing the use of tiny low cost capacitors and inductors. In addition,its internal 1A switch allows high current outputs to be generated. Its current mode control scheme provides excellent line and load regulation.