Phase Controller 48-Pin QFN T/R

The NCP5393 controls up to four VDD phases and one VDDNB phase to provide a buck regulator solution for current and next-generation AMD processors. The NCP5393 incorporates differential voltage sensing, differential phase current sensing, optional load-line voltage positioning, and programmable VDD and VDDNB offsets to provide accurately regulated power parallel- and serial-VID AMD processors. Dual-edge multiphase modulation provides the fastest initial response to dynamic load events. This reduces system cost by requiring less bulk and ceramic output capacitance to meet transient regulation specifications. High performance operational error amplifiers are provided to simplify compensation of the VDD and VDDNB regulators. Dynamic Reference Injection further simplifies loop compensation by eliminating the need to compromise between response to load transients and response to VID code changes. Meets AMD"s Parallel, Serial (SVI) and Hybrid VR Specifications Up to Four VDD Phases Single-Phase VDDNB Controller Dual-Edge PWM for Fastest Initial Response to Transient Loading High Performance Operational Error Amplifiers Internal Soft Start and Slew Rate Limiting Dynamic Reference Injection (Patent #US07057381) DAC Range from 12.5 mV to 1.55 V 0.5% DAC Accuracy fro 0.8 V to 1.55 V VDD and VDD Offset Ranges 0 mV - 800 mV True Differential Remote Voltage Sense Amplifiers Phase-to-Phase IDD Current Balancing Differential Current Sense Amplifiers for Each Phase of Each Output "Lossless" Inductor Current Sensing for VDD and VDDNB Outputs Supports Load Lines (Droop) for VDD and VDDNB Outputs Oscillator Range of 100 kHz - 1 MHz Tracking Over Voltage Protection Output Inductor DCR-Based Over Current Protection for VDD and VDDNB Outputs Guaranteed Startup into Precharged Loads Temperature Range: 0°C to 70°C This is a Pb-Free Device