LTC3733CG LTC3733CUHF-1 LTC3733 - 3-Phase, Buck Controllers for AMD CPUs


LTC3733CG LTC3733CUHF-1 LTC3733 - 3-Phase, Buck Controllers for AMD CPUs


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Product Details
Name Details
Buy now just US $5.00 - 5.50
Discount
Product id 1000004348682
Vendor POCCIO Official Store
Category Consumer Electronics - Video Games

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Video Games

Video Games


Video Games

Video Games


Video Games

Video Games


Description :



Features and Benefits  
  • 3-Phase Controller with Onboard MOSFET Drivers
  • Current Mode Control Ensures Current Sharing
  • Differential Amplifier Accurately Senses VOUT
  • ±5% Output Current Matching Optimizes Thermal Performance and Size of Inductors and MOSFETs
  • Reduced Input and Output Capacitance
  • Supports Active Voltage Positioning
  • VID Programmable Output Voltage from 0.8V to 1.55V (AMD Opteron™ CPU)
  • 6-Phase, 90A to 120A Operation
  • Output Power Good Indicator with Adaptive Blanking
  • 210kHz to 530kHz Per Phase, PLL, Fixed Frequency
  • Synchronizable (LTC3733-1)
  • PWM, Stage Shedding or Burst Mode® Operation
  • OPTI-LOOP® Compensation Minimizes COUT
  • Adjustable Soft-Start Current Ramping
  • Short-Circuit Shutdown Timer with Defeat Option
  • No_CPU Detection
  • 36-Lead Narrow SSOP and 38-Lead (5mm × 7mm) QFN
 

Product details

 

The LTC3733 family are PolyPhase® synchronous stepdown switching regulator controllers that drive 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 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.    

Applications

 
  • High Performance Notebook Computers
  • Servers, Desktop Computers and Workstations
   

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