Datasheet > NCP6251

NCP6251

更新时间： 2024-11-24 01:20:03

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
24页	293K
描述
2/3/4-Phase Controller for CPU Applications

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NCP6251 数据手册

NCP6251

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2/3/4-Phase Controller for

CPU Applications

The NCP6251 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 NCP6251

incorporates differential voltage sensing, differential phase current

sensing, optional load−line voltage positioning, and programmable

http://onsemi.com

MARKING

DIAGRAM

and V

offsets to provide accurately regulated power

DDNB

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

NCP6251

AWLYYWWG

QFN48, 7x7

CASE 485AJ

simplify compensation of the V and V

regulators. Dynamic

DDNB

= Assembly Location

= Wafer Lot

Reference Injection further simplifies loop compensation by

eliminating the need to compromise between response to load

transients and response to VID code changes.

Features

= Year

= Work Week

= Pb−Free Package

• Meets AMD’s Hybrid VR Specifications

• Up to Four V Phases

• Single−Phase V

Controller

ORDERING INFORMATION

DDNB

• Dual−Edge PWM for Fastest Initial Response to Transient Loading

• High Performance Operational Error Amplifiers

• Internal Soft−Start and Slew Rate Limiting

†

Device

NCP6251MNR2G

Package

Shipping

QFN48

(Pb−Free)

2500 / Tape & Reel

• Dynamic Reference Injection (Patent #US07057381)

• DAC Range from 12.5 mV to 1.55 V

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

• $0.6% DAC Accuracy from 0.8 V to 1.55 V

• V and V Offset Ranges 0 mV − 800 mV

• True Differential Remote Voltage Sense Amplifiers

• Phase−to−Phase I Current Balancing

• Differential Current Sense Amplifiers for Each Phase of Each Output

• “Lossless” Inductor Current Sensing for V and V

Outputs

DDNB

• Supports Load Lines (Droop) for V and V

DDNB

• Oscillator Range of 100 kHz − 1 MHz

• Tracking Overvoltage Protection

• Output Inductor DCR−Based Over Current Protection for V and

DDNB

Outputs

• Guaranteed Startup into Precharged Loads

• Temperature Range: 0°C to 70°C

• Two Stage Overcurrent Protection

Applications

• Desktop Processors

• Server Processors

• High−End Notebook PCs

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

Publication Order Number:

October, 2010 − Rev. P0

NCP6251/D

12 3 4 5 6 7...24

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与NCP6251相关器件

型号	品牌	获取价格	描述	数据表
NCP6251MNR2G	ONSEMI	获取价格	2/3/4-Phase Controller for CPU Applications
NCP629	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC15T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC18T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC28T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC30T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC33T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC35T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP629FC50T2G	ONSEMI	获取价格	High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale
NCP630	ONSEMI	获取价格	3.0 A Fast Linear Voltage Regulators

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