Datasheet > RT8868A

RT8868A

更新时间： 2024-01-18 13:43:25

品牌	Logo	应用领域
立锜 - RICHTEK		控制器
页数	文件大小	规格书
21页	478K
描述
4/3/2/1-Phase PWM Controller for AMD AM2/AM2/AM3 CPUs

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

RT8868A 数据手册

RT8868A

4/3/2/1-Phase PWM Controller for AMD AM2/AM2+/AM3 CPUs

General Description

Features

^z12V Power Supply Voltage

The RT8868A is a 4/3/2/1-phase synchronous buck

controller with two integrated MOSFET drivers for CPU

power application and a single-phase buck with integrated

MOSFET driver for North-Bridge (NB) chipset. The

RT8868Auses differential inductorDCR current sense to

achieve phase current balance and active voltage

positioning. Other features include adjustable operating

frequency, power good indication, external error-amp

compensation, over voltage protection, over current

protection and enable/shutdown for various applications.

The RT8868Acomes in a small footprint with WQFN-48L

7x7 package.

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

^z3 Embedded MOSFET Drivers (2 for CPU and 1 for

NB)

^zInternal Regulated 5V Output

^zSupport AMD AM2 6-bit Parallel and AM2+ 7-bit

Serial VID Tables

^zSupport 3.4MHz High Speed I²C

^zContinuous Differential Inductor DCR Current Sense

^zAdjustable Frequency (Typically at 300kHz)

^zSelectable 1 or 2 Phase in Power-Saving (PS) Mode

^zPhase-Interleaving for V_COREController

z Power Good Indication

z Adjustable Over Current Protection

z Over Voltage Protection

Applications

z Desktop CPU Core Power

z Small 48-Lead WQFN Package

z Low Voltage, High CurrentDC/DC Converter

z RoHS Compliant and Halogen Free

Ordering Information

Pin Configurations

RT8868A

(TOP VIEW)

Package Type

QW : WQFN-48L 7x7 (W-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

48 47 46 45 44 43 42 41 40 39 38 37

Note :

PWROK

36 BOOT_NB

35 BOOT1

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

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

FBRTN

FBRTN_NB

FB_NB

COMP_NB

ISP_NB

ISN_NB

ADJ

UGATE1

PHASE1

LGATE1

31 VCC12

GND

30 LGATE2

PHASE2

UGATE2

BOOT2

PWM3

Marking Information

RT8868AGQW : Product Number

OFS

RT8868A

GQW

YMDNN : Date Code

COMP 11

PWM4

YMDNN

13 14 15 16 17 18 19 20 21 22 23 24

WQFN-48L 7x7

is a registered trademark of Richtek Technology Corporation.

DS8868A-00 May 2012

www.richtek.com

12 3 4 5 6 7...21

中文翻译

下载PDF

与RT8868A相关器件

型号	品牌	获取价格	描述	数据表
RT8869	RICHTEK	获取价格	暂无描述
RT8869A	RICHTEK	获取价格	Advanced 2/1-Phase PWM Controller for CPU Core Power
RT8876A	RICHTEK	获取价格	Dual Channel PWM Controller with 3/2/1 Phase for CORE VR and Single Phase for AXG VR
RT8876A_14	RICHTEK	获取价格	Dual Channel PWM Controller
RT8876AGQW	RICHTEK	获取价格	Dual Channel PWM Controller
RT8876B	RICHTEK	获取价格	暂无描述
RT8877C	RICHTEK	获取价格	Dual-Output PWM Controller for AMD SVI2 CPU Power Supply
RT8877D	RICHTEK	获取价格	暂无描述
RT8877F	RICHTEK	获取价格	暂无描述
RT8878A	RICHTEK	获取价格	Dual-Output PWM Controller with 2 Integrated Drivers for AMD SVI2 CPU Power Supply