NCP5392PMNR2G Description

In order to supply precisely controlled power for both Intel and AMD CPUs, the NCP5392PMNR2G offers up to a four-phase buck solution that includes differential voltage detection, differential phase current sensing, and adaptive voltage placement. Inductor current sensing and dual-edge pulse-width modulation (PWM) offer the quickest initial reaction to dynamic load events, which lowers system costs. Reduced total bulk and ceramic output capacitance is needed to satisfy transient regulation standards when using dual-edge multiphase modulation.

NCP5392PMNR2G Features

• Internal Soft Start

• This is a Pb--Free Device

• Dynamic Reference Injection

• DAC Range from 0.375 V to 1.6 V

• DAC Feed Forward Function

• Adaptive Voltage Positioning (AVP)

• Meets Intel’s VR11.1 Specifications

• Meets AMD 6 Bit Code Specifications

• Phase--to--Phase Current Balancing

• Latched Over Voltage Protection (OVP)

• Power Good Output with Internal Delays

• Automatic Power Saving (AUTO PSI Mode)

• Guaranteed Startup into Pre--Charged Loads

• High Performance Operational Error Amplifier

• Thermally Compensated Current Monitoring

• 0.5% DAC Voltage Accuracy from 1.0 V to 1.6 V

• Threshold Sensitive Enable Pin for VTT Sensing

• Compatible to PSI Power Saving Requirements

• Oscillator Frequency Range of 100 kHz – 1 MHz

• “Lossless” Differential Inductor Current Sensing

• True Differential Remote Voltage Sensing Amplifier

• Differential Current Sense Amplifiers for each Phase

• Dual--edge PWM for Fastest Initial Response to Transient Loading

NCP5392PMNR2G Applications

• Desktop Processors