Datasheet > RT8841GQW

RT8841GQW

更新时间： 2022-09-29 19:44:57

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
33页	371K
描述
IC CTRLR PWM MULTI-PHASE 40WQFN

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RT8841GQW 数据手册

RT8841

4/3/2/1-Phase PWM Controller for High-Density Power Supply

General Description

Features

^12V Power Supply Voltage

The RT8841 is a 4/3/2/1-phase synchronous buck

controller with 2 integrated MOSFET drivers for VR11 CPU

power application. RT8841 uses differential inductorDCR

current sense to achieve phase current balance and active

voltage positioning. Other features include adjustable

operating frequency, adjustable soft start, power good

indication, external error-amp compensation, over voltage

protection, over current protection and enable/shutdown

for various applications. RT8841 comes to a small footprint

with WQFN-40L 6x6 package.

^4/3/2/1-Phase Power Conversion

^2 Embedded MOSFET Drivers

^Internal Regulated 5V Output

^VID Tables for Intel VRD11/VRD10.x and AMD K8,

K8_M2 CPUs

^Continuous Differential Inductor DCR Current Sense

^Adjustable Soft Start

^Adjustable Frequency

^Power Good Indication

^Adjustable Over Current Protection

^Over Voltage Protection

Applications

 Small 40-Lead WQFN Package

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

 Desktop CPU Core Power

 Low Voltage, High CurrentDC/DC Converter

Pin Configurations

Ordering Information

RT8841

(TOP VIEW)

Package Type

QW : WQFN-40L 6X6 (W-Type)

(Exposed Pad-Option 1)

40 39 38 37 36 35 34 33 32 31

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

VIDSEL

FBRTN

SS/EN

ADJ

BOOT1

UGATE1

PHASE1

LGATE1

VCC12

LGATE2

PHASE2

UGATE2

BOOT2

PWM3

Note :

Richtek products are :

COMP

GND

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

OFS

IMAX

GND

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

11 12 13 14 15 16 17 18 19 20

WQFN-40L 6x6

is a registered trademark of Richtek Technology Corporation.

DS8841-02 August 2014

www.richtek.com

12 3 4 5 6 7...33

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