NCP5393B中文资料2/3/4 Phase Controller for CPU Applications数据手册ONSEMI规格书

描述 Description

The NCP5393B is a multiphase synchronous buck regulator controller designed to power the Core and Northbridge of an AMD microprocessor. The controller has a user configurable two, three, or four phase regulator for the Core and an independent single phase regulator to power the microprocessor Northbridge. The NCP5393B 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.

特性 Features

• Meets AMDs Parallel, Serial and Hybrid VR Specifications
• Up to Four VDD Phases and Single-Phase VDDNB Controller
• Dual-Edge PWM for Fastest Initial Response to Transient Loading
• 0.5% DAC Accuracy for 0.8 V to 1.55 V
• VDD and VDD Offset Ranges 0 mV - 800 mV
• Phase-to-Phase IDD Current Balancing
• 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
• Over Voltage Protection and Over Current Protection

应用 Application

• Desktop Processors
• Server Processors

简介

NCP5393B属于集成电路（IC）的特殊用途稳压器。由制造生产的NCP5393B特殊用途稳压器该系列产品用于电源控制、某种形式的转换，适用于特定的复杂应用。因此，各种产品特性集差异较大，包括空燃比传感器接口、汽车交流发电机电压调节、DDR 端接、液体透镜控制、摩托车转向信号控制、热电 (peltier) 冷却器控制、压电触觉控制、阀门控制、小型发动机管理等。