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LTC3733

Part Number	LTC3733
Manufacturer	Linear Technology
Description	3-Phase Buck Controllers
Published	Mar 27, 2005
Detailed Description	LTC3733/LTC3733-1 3-Phase, Buck Controllers for AMD CPUs FEATURES s s s s DESCRIPTIO s s s s s s s s s s s s s U APP...
Datasheet	LTC3733 PDF File

Overview

LTC3733/LTC3733-1 3-Phase, Buck Controllers for AMD CPUs FEATURES s s s s DESCRIPTIO s s s s s s s s s s s s s U APPLICATIO S s s 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 OpteronTM 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 0.
209" SSOP and 38-Lead (5mm × 7mm) QFN The LTC®3733 family are PolyPhase® synchronous stepdown switching regulator controllers that driv...

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