Datasheet > VcoreCont> RT8841

RT8841

更新时间： 2024-01-16 09:47:33

品牌	Logo	应用领域
立锜 - RICHTEK		电压核心转换控制器
页数	文件大小	规格书
32页	445K
描述
4/3/2/1-Phase PWM Controller for High-Density Power Supply

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技术参数
数据手册

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RT8841 技术参数

Status：	Active	VID Table Support：	K8;K8_M2;VR10.x;VR11.0
Number of Phases：	4	Vcc (typ) (V)：	12
Vin (min) (V)：	10.8	Vin (max) (V)：	13.2
Accuracy (Vout>=1V) (+/- %)：	0.5	Freq (typ) (kHz)：	300
Built-in DAC Generator：	Yes	Number of MOSFET Drivers：	2
Features：	Adjustable Frequency;Adjustable Soft-Start;DCR Current Sense;Droop Control;Enable Input;OCP;OVP;Power Good;SCP;Voltage Mode Control	Package Type：	WQFN6x6-40
Datasheet：	#N/A

RT8841 数据手册

RT8841

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

General Description

Features

^z12V 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

^z4/3/2/1-Phase Power Conversion

^z2 Embedded MOSFET Drivers

^zInternal Regulated 5V Output

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

K8_M2 CPUs

^zContinuous Differential Inductor DCR Current Sense

^zAdjustable Soft Start

^zAdjustable Frequency

^zPower Good Indication

^zAdjustable Over Current Protection

^zOver Voltage Protection

Applications

z Small 40-Lead WQFN Package

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

z Desktop CPU Core Power

z Low Voltage, High CurrentDC/DC Converter

Pin Configurations

Ordering Information

RT8841

(TOP VIEW)

Package Type

QW : WQFN-40L 6x6 (W-Type)

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

Note :

40 39 38 37 36 35 34 33 32 31

VIDSEL

FBRTN

SS/EN

ADJ

BOOT1

UGATE1

PHASE1

LGATE1

VCC12

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

COMP

GND

LGATE2

PHASE2

UGATE2

BOOT2

PWM3

OFS

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

IMAX

GND

11 12 13 14 15 16 17 18 19 20

WQFN-40L 6x6

DS8841-01 April 2011

www.richtek.com

12 3 4 5 6 7...32

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