Datasheet > RT3667BL

RT3667BL

更新时间： 2024-09-18 15:50:03

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
43页	558K
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RT3667BL 技术参数

Status：	Active	VID Table Support：	SVI2
Number of Phases：	2;4	Vcc (typ) (V)：	5
Vin (min) (V)：	4.5	Vin (max) (V)：	24
Accuracy (Vout>=1V) (+/- %)：	0.5	Freq (typ) (kHz)：	500
Built-in DAC Generator：	Yes	Number of MOSFET Drivers：	0;2
Features：	Adjustable Frequency;DCR Current Sense;Diode Emulation Mode;Droop Control;Enable Input;Fast Transient Response;G-NAVP Control;OCP;OVP;Power Good;Stable with Ceramic Capacitor;UVP	Package Type：	WQFN6x6-52

RT3667BL 数据手册

RT3667BL

Dual-Output PWM Controller with 2 Integrated Drivers for

AMD SVI2 CPU Power Supply

General Description

Features

^4/3/2/1-Phase (VDD) + 2/1/0-Phase (VDDNB) PWM

The RT3667BL is a 4 + 2 phases PWM controller, and is

compliant withAMDSVI2 Voltage Regulator Specification

to support both CPU core (VDD) andNorthbridge portion

of the CPU (VDDNB). The RT3667BL features CCRCOT

(Constant Current Ripple Constant On-Time) with the G-

NAVP (Green-NativeAVP), which is Richtek's proprietary

topology. TheG-NAVP makes it an easy setting controller

to meet all AMD AVP (Active Voltage Positioning) VDD/

VDDNB requirements. The droop is easily programmed

by setting the DC gain of the error amplifier. With proper

compensation, the load transient response can achieve

optimizedAVP performance. The controller also uses the

interface to issue VOTF Complete and to send digitally

encoded voltage and current values for the VDD and

VDDNB domains. It can operate in single phase and diode

emulation mode and reach up to 90% efficiency in different

modes according to different loading conditions. The

RT3667BL provides special purpose offset capabilities by

pin setting. The RT3667BL also provides power good

indication, over-current indication (OCP_L) and dual OCP

mechanism for AMD SVI2 CPU core and NB. It also

features fault protection functions, including over-voltage,

under-voltage and negative voltage protections.

Controller

^2 Embedded MOSFET Drivers at the VDD Controller

^G-NAVP^TMTopology

^Support Dynamic Load-Line and Zero Load-Line

^Diode Emulation Mode at Light Load Condition

^SVI2 Interface to Comply AMD Power Management

Protocol

^Build-In ADC for V_OUTand I_OUTReporting

^Immediate OV, UV and NV Protections and UVLO

^Programmable Dual OCP Mechanism

 0.5% DAC Accuracy

 Fast Transient Response

 Power Good Indicator

 Over-Current Indicator

 52-Lead WQFN Package

Applications

 AMD SVI2 CPU

 Desktop Computer

Simplified Application Circuit

RT3667BL

OCP_L

PHASE1

PHASE2

PWM3

MOSFET

VDD

SVC

RT9624A

MOSFET

To CPU

PWM4

RT9624A

SVD

PWMA1

PWMA2

VDDNB

SVT

is a registered trademark of Richtek Technology Corporation.

DS3667BL-00 September 2019

www.richtek.com

12 3 4 5 6 7...43

中文翻译

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与RT3667BL相关器件

型号	品牌	获取价格	描述	数据表
RT3667BQ	RICHTEK	获取价格	Dual-Output PWM Controller with 2 Integrated Drivers for AMD SVI2 CPU Power Supply
RT3667BT	RICHTEK	获取价格	暂无描述
RT3667BY	RICHTEK	获取价格	暂无描述
RT3668EB	RICHTEK	获取价格	暂无描述
RT3669EA	RICHTEK	获取价格	暂无描述
RT3674FE	RICHTEK	获取价格	Triple Channel PWM Controller for AMD SVI3 CPU/GPU Core Power Supply
RT-375-1/16-X-4FT	ETC	获取价格	HEAT SHRINK CLR 1.2M
RT-375-1/2-X-4FT	ETC	获取价格	HEAT SHRINK CLR 1.2M
RT-375-1/4-X-4FT	ETC	获取价格	HEAT SHRINK CLR 1.2M
RT-375-1/8-X-4FT	ETC	获取价格	HEAT SHRINK CLR 1.2M

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