Datasheet > RT8802AGQV

RT8802AGQV

更新时间： 2024-02-05 11:56:26

品牌	Logo	应用领域
立锜 - RICHTEK		控制器
页数	文件大小	规格书
28页	535K
描述
2/3/4/5-Phase PWM Controller for High-Density Power Supply

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RT8802AGQV 数据手册

RT8802A

2/3/4/5-Phase PWM Controller for High-Density Power Supply

General Description

Features

^z5V Power Supply

The RT8802Ais a 2/3/4/5-phase synchronous buck controller

specifically designed to power Intel^®/AMDnext generation

microprocessors. It implements an internal 8-bitDAC that is

identified by VIDcode of microprocessor directly. RT8802A

generates VID table that conform to Intel^®VRD10.x and

VRD11 core power with 6.25mV increments and 0.5%

accuracy.

^z2/3/4/5-Phase Power Conversion with Automatic

Phase Selection

^z8-bit VID Interface, Supporting Intel VRD11/VRD10.x

and AMD K8, K8_M2 CPUs

^zVR_HOT and VR_FAN Indication

^zPrecision Core Voltage Regulation

^zPower Stage Thermal Balance by DCR Current

Sensing

RT8802Aadoptsinnovativetime-sharingDCRcurrentsensing

technique to sense phase currents for phase current balance,

load line setting and over current protection. Using a common

GM to sense all phase currents eliminates offset and linearity

variation between GMs in conventional current sensing

methods.As sub-milli-ohm-grade inductors are widely used

in modern motherboards, slight offset and linearity mismatch

will cause considerable current shift between phases. This

technique ensures good current balance in mass production.

^zAdjustable Soft-start

^zOver-Voltage Protection

^zAdjustable Frequency and Typical at 300kHz per

Phase

z Power Good Indication

z 40-Lead VQFN Package

z RoHS Compliant and 100% Lead (Pb)-Free

Other features include over current protection, programmable

soft start, over voltage protection, and output offset setting.

RT8802A comes to a small footprint package with

VQFN-40L 6x6.

Applications

z Intel^®/AMDNew generation microprocessor forDesktop

PC and Motherboard

z Low Output Voltage, High power density DC-DC

Converters

Ordering Information

RT8802A

z Voltage Regulator Modules

Pin Configurations

Package Type

QV : VQFN-40L 6x6 (V-Type)

(TOP VIEW)

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

40 39 38 37 36 35 34 33 32 31

Note :

VTT/EN

PWM5

PWM4

PWM3

PWM2

VR_Ready

FBRTN

Richtek Pb-free and Green products are :

`RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

COMP

PWM1

ISP1

GND

`Suitable for use in SnPb or Pb-free soldering processes.

`100% matte tin (Sn) plating.

QRSEL

VR_FAN

VR_HOT

TSEN

ISP2

²³ISP3

ISP4

ISP5

11 12 13 14 15 16 17 18 19 20

VQFN-40L 6x6

All brandname or trademark belong to their owner respectively

DS8802A-04 August 2007

www.richtek.com

12 3 4 5 6 7...28

中文翻译

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与RT8802AGQV相关器件

型号	品牌	获取价格	描述	数据表
RT8802APQV	RICHTEK	获取价格	2/3/4/5-Phase PWM Controller for High-Density Power Supply
RT8803A	RICHTEK	获取价格	2/3-Phase PWM Controller for High-Density Power Supply
RT8803A_11	RICHTEK	获取价格	2/3-Phase PWM Controller for High-Density Power Supply
RT8805	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805C	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805CGQV	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805CGQVA	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805CPQV	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805CPQVA	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805GQV	RICHTEK	获取价格	Two Phase General Purpose PWM Controller

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