Datasheet > RT8803A_11

RT8803A_11

更新时间： 2024-09-26 12:23:39

品牌	Logo	应用领域
立锜 - RICHTEK		控制器
页数	文件大小	规格书
27页	513K
描述
2/3-Phase PWM Controller for High-Density Power Supply

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

RT8803A_11 数据手册

RT8803A

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

General Description

Features

^z5V Power Supply

The RT8803A is a 2/3-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. RT8803A

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

VRD11 core power with 6.25mV increments and 0.5%

accuracy.

^z2/3-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

RT8803Aadoptsinnovativetime-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 at mass production.

^zAdjustable Soft-start

^zOver-Voltage Protection

^zAdjustable Frequency and Typical at 300kHz per

Phase

z Power Good Indication

z 32-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.

RT8803A comes to a small footprint package with

VQFN-32L 5x5.

Applications

z Intel^®/AMDNew generation microprocessor forDesktop

PC and Motherboard

z Low Output Voltage, High power density DC-DC

Converters

Ordering Information

RT8803A

z Voltage Regulator Modules

Pin Configurations

Package Type

QV : VQFN-32L 5x5 (V-Type)

(TOP VIEW)

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

Note :

32 31 30 29 28 27 26 25

VTT/EN

VR_Ready

FBRTN

VID7

Richtek products are :

VDD

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

PWM3

PWM2

PWM1

ISP1

GND

COMP

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

VR_FAN

VR_HOT

ISP2

ISP3

10 11 12 13 14 15 16

VQFN-32L 5x5

DS8803A-06 April 2011

www.richtek.com

12 3 4 5 6 7...27

中文翻译

下载PDF

与RT8803A_11相关器件

型号	品牌	获取价格	描述	数据表
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
RT8805GQVA	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805PQV	RICHTEK	获取价格	Two Phase General Purpose PWM Controller
RT8805PQVA	RICHTEK	获取价格	Two Phase General Purpose PWM Controller

与RT8803A_11相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

9
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

8
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

12
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

19

产品中心

服务支持

精选活动

关于我们

帮助中心

RT8803A_11

RT8803A_11 数据手册

与RT8803A_11相关器件

与RT8803A_11相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

RT8803A_11

RT8803A_11 数据手册

与RT8803A_11相关器件

与RT8803A_11相关文章

您还可以找

您在本页遇到什么问题？