厂商：Freescale
类别：16位单片机
厂商：Linear
类别：开关稳压器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
类别：EEPROM
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特点Output Stages Operate Antiphase Reducing Input and Output Capacitance Requirements and Power Supply Induced NoiseDual Input Supply Capability for Load Sharing 5-Bit AMD CPU VID Code: ?? V OUT = 0.8V to 1.55V ±1% Output Voltage AccuracyTrue Remote Sensing Differential AmplifierPower Good Output Voltage MonitorSupports Active Voltage PositioningCurrent Mode Control Ensures Current Sharing OPTI-LOOP? Compensation Minimizes C OUT Three Operational Modes: PWM, Burst and Cycle SkipProgrammable Fixed Frequency: 150kHz to 300kHz Wide V IN Range: 4V to 36V Operation Adjustable Soft-Start Current RampingInternal Current Foldback and Short-Circuit ShutdownOvervoltage Soft Latch Eliminates Nuisance TripsAvailable in 36-Lead Narrow (0.209) SSOP Package典型应用描述The LTC?3719 is a 2-phase, VID programmable, synchronous step-down switching regulator controller that drives two N-channel external power MOSFET stages in a fixed frequency architecture. The 2-phase controller drives its two output stages out of phase at frequencies up to 300kHz to minimize the RMS ripple currents in both input and output capacitors. The 2-phase technique effectively multiplies the fundamental frequency by two, improving transient response while operating each channel at an optimum frequency for efficiency. Thermal design is also simplified.An operating mode select pin (FCB) can be used to select among three modes including Burst Mode? operation for highest efficiency. An internal differential amplifier provides true remote sensing of the regulated supply’s positive and negative output terminals as required in high current applications.The RUN/SS pin provides soft-start and optional timed, short-circuit shutdown. Current foldback limits MOSFET dissipation during short-circuit conditions when the overcurrent latchoff is disabled. OPTI-LOOP compensation allows the transient response to be optimized for a wide range of output capacitors and ESR values.