Soft Sw PWM Cntrlr 3-OUT Multi Phase PWM Controller 100KHz to 1MHz 32-Pin QFN EP T/R

The NCP5391 is a two- or three-phase buck controller which combines differential voltage and current sensing, and adaptive voltage positioning to power Intel"s most demanding Pentium® IV Processors and low voltage, high current power supplies. Dual-edge pulse-width modulation (PWM) combined with inductor current sensing reduces system cost by providing the fastest initial response to transient loads thereby requiring less bulk and ceramic output capacitors to satisfy transient load-line requirements. A high performance operational error amplifier is provided, which allows easy compensation of the system. The proprietary method of Dynamic Reference Injection (Patented) makes the error amplifier compensation virtually independent of the system response to VID changes, eliminating the need for tradeoffs between load transients and Dynamic VID performance. Meets Intel"s VR 11.0 Specification Dual-Edge PWM for Fastest Initial Response to Transient Loading High Performance Operational Error Amplifier Supports VR11 Soft-Start Mode Dynamic Reference Injection (Patent# 7057381) 8-Bit DAC per Intel"s VR11 Specifications DAC Range from 0.5 V to 1.6 V 0.5% System Voltage Accuracy 2 or 3-Phase Operation True Differential Remote Voltage Sensing Amplifier Phase-to-Phase Current Balancing "Lossless" Differential Inductor Current Sensing Differential Current Sense Amplifiers for each Phase Adaptive Voltage Positioning (AVP) Fixed No-Load Voltage Positioning at -19 mV Frequency Range: 100 kHz - 1.0 MHz Threshold Sensitive Enable Pin for VTT Sensing Power Good Output with Internal Delays Programmable Soft-Start Time Operates from 12 V This is a Pb-Free Device