厂商：Freescale
类别：16位单片机
厂商：Littelfuse
类别：保险丝座及配件
厂商：Yageo
类别：铝电解电容
厂商：AKM
类别：数字音频DAC
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：串行闪存
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特点3-Phase Controller with Onboard MOSFET DriversCurrent Mode Control Ensures Current Sharing Differential Amplifier Accurately Senses V OUT ±5% Output Current Matching Optimizes Thermal Performance and Size of Inductors and MOSFETsReduced Input and Output CapacitanceSupports Active Voltage PositioningVID Programmable Output Voltage from 0.8V to 1.55V (AMD Opteron? CPU)6-Phase, 90A to 120A OperationOutput Power Good Indicator with Adaptive Blanking210kHz to 530kHz Per Phase, PLL, Fixed FrequencySynchronizable (LTC3733-1)PWM, Stage Shedding or Burst Mode? Operation OPTI-LOOP? Compensation Minimizes C OUT Adjustable Soft-Start Current RampingShort-Circuit Shutdown Timer with Defeat OptionNo_CPU Detection36-Lead Narrow SSOP and 38-Lead (5mm x 7mm) QFN典型应用描述The LTC?3733 family are PolyPhase? synchronous stepdown switching regulator controllers that drive all N-channel external power MOSFET stages in a phaselockable, fixed frequency architecture. The 3-phase controller drives its output stages with 120° phase separation at frequencies of up to 530kHz per phase to minimize the RMS current dissipated by the ESR of both the input and output filter capacitors. The 3-phase technique effectively triples the fundamental frequency, improving transient response while operating each phase at an optimal frequency for 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 sides 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. An all-“1” VID detector turns off the regulator after 1μs timeout.