厂商：Freescale
类别：16位单片机
厂商：Littelfuse
类别：保护继电器
厂商：Atmel
类别：SPLD/CPLD
厂商：Linear
类别：零漂移放大器
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Peregrine
类别：混频器
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特点3-Phase Controller with Onboard MOSFET Drivers±5% Output Current Matching Optimizes Thermal Performance and Size of Inductors and MOSFETs 4.5V Differential Amplifier Accurately Senses V OUT Reduced Input and Output CapacitanceReduced Power Supply Induced NoiseVID DAC Programmable from 1.1V to 1.85V (VRM9.0/9.1)±10% Power Good Output Indicator250kHz to 600kHz Per Phase, PLL, Fixed FrequencyPWM, Stage Shedding? or Burst Mode? Operation OPTI-LOOP? Compensation Minimizes C OUT Adjustable Soft-Start Current RampingShort-Circuit Shutdown Timer with Defeat OptionOvervoltage Soft LatchSmall 36-Lead Narrow (0.209 inch) SSOP PackageQFN 5mm x 7mm 38-Lead Package典型应用描述The LTC?3732 is a PolyPhase? synchronous step-down switching regulator controller that drives all N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The 3-phase controller drives its output stages with 120° phase separation at frequencies of up to 600kHz per phase to minimize the RMS current losses in both the input and output filter capacitors. The 3- phase technique effectively triples the fundamental frequency, improving transient response while operating each controller at an optimal frequency for high efficiency and ease of thermal design. Light load efficiency is optimized by using a choice of output Stage Shedding or Burst Mode technology.A differential amplifier provides true remote sensing of both the high and low side of the output voltage at load points.Soft-start and a defeatable, timed short-circuit shutdown protect the MOSFETs and the load. A foldback current circuit also provides protection for the external MOSFETs under short-circuit or overload conditions.LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode, OPTI-LOOP and PolyPhase are registered trademarks of Linear Technology Corporation. Stage Shedding is a trademark of Linear Technology Corporation.