FAN5031

更新时间： 2024-01-18 06:01:46

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
3页	425K
描述
8-Bit Programmable, 2 to 4 Phase, Synchronous Buck Controller

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FAN5031 技术参数

生命周期：	Active	零件包装代码：	DFN
包装说明：	VQCCN,	针数：	40
Reach Compliance Code：	unknown	风险等级：	5.69
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制技术：	PULSE WIDTH MODULATION	标称输入电压：	12 V
JESD-30 代码：	S-XQCC-N40	长度：	6 mm
功能数量：	1	端子数量：	40
最高工作温度：	85 °C	最低工作温度：
封装主体材料：	UNSPECIFIED	封装代码：	VQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, VERY THIN PROFILE
座面最大高度：	0.8 mm	表面贴装：	YES
切换器配置：	PHASE-SHIFT	最大切换频率：	1000 kHz
温度等级：	OTHER	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	6 mm	Base Number Matches：	1

FAN5031 数据手册

March 2006

FAN5031

8-Bit Programmable, 2 to 4 Phase, Synchronous Buck

Controller

Features

Description

■ Selectable 2, 3, or 4 phase operation at up to 1MHz

The FAN5031 device is a multi-phase buck switching

regulator controller, that is optimized to convert a 12V

input supply to the processor core voltage required by

high performance Intel processors. It has an internal 8-bit

DAC that converts a digital voltage identiﬁcation (VID)

code, that is sent from the processor, to set the output

voltage between 0.5V and 1.6V in 6.25 mV steps. It out-

puts a PWM signals to external MOSFET drivers that, in

turn, drive the switching power MOSFETs. The switching

frequency of the design is easily programmable by a

single resistor value and the number of phases can be

programmed to support 2, 3, or 4 phase applications.

per phase

■ ±7.7mV worst-case differential sensing error over

temperature

■ Active current balancing between the output phases

■ Power good and Crowbar blanking supports on-the-ﬂy

VID code changes

■ 0.5V to 1.6V output

■ Fully compliant to both Intel’s VR10 and VR11

speciﬁcations

■ Selectable VR10 extended (7 bit) and VR11 (8 bit)

VID tables

The FAN5031 also includes programmable no-load off-

set and droop functions to adjust the output voltage as a

function of the load current, as required by the Intel spec-

iﬁcations. The FAN5031 also provides an accurate and

reliable short circuit protection function with an adjust-

able over current set-point.

■ Programmable soft start ramp

■ Programmable short circuit protection and latch-off

delay

Applications

■ Desktop PC/Server processor power supplies for

The FAN5031 is speciﬁed over the commercial tempera-

ture range of 0°C to +85°C and is available in a 40-lead

MLP package.

existing and next generation Intel processors

■ VRM modules

Ordering Information

Temperature

Quantity per

Part Number

Range

Package Type

Packing Method

Reel

FAN5031MPX*

0°C to 85°C

MLP-40

Tape and Reel

3,000

*Lead free part

FAN5031 Rev. 1.0.1

www.fairchildsemi.com

12 3

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与FAN5031相关器件

型号	品牌	获取价格	描述	数据表
FAN5031MPX	FAIRCHILD	获取价格	8-Bit Programmable, 2 to 4 Phase, Synchronous Buck Controller
FAN5032	FAIRCHILD	获取价格	8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller
FAN5032MPX	FAIRCHILD	获取价格	8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller
FAN5033	FAIRCHILD	获取价格	8-Bit Programmable, 2- to 3-Phase, Synchronous Buck Controller
FAN5033MPX	FAIRCHILD	获取价格	8-Bit Programmable, 2- to 3-Phase, Synchronous Buck Controller
FAN5035MTC	FAIRCHILD	获取价格	Switching Controller, Voltage-mode, 1500kHz Switching Freq-Max, PDSO24, TSSOP-24
FAN5035MTCX	ETC	获取价格	Analog IC
FAN5037	FAIRCHILD	获取价格	Adjustable Switching Regulator Controller
FAN5037M	FAIRCHILD	获取价格	Analog IC
FAN5037M_NL	FAIRCHILD	获取价格	暂无描述

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