Datasheet > RT8167BGQW

RT8167BGQW

更新时间： 2022-09-29 19:45:31

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
38页	495K
描述
IC CTRLR BUCK PWM VM DL 40WQFN

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RT8167BGQW 数据手册

RT8167B

Dual Single-Phase PWM Controller for CPU and GPU Core

Power Supply

General Description

Features

^Dual Single-Phase PWM Controller for CPU Core

The RT8167B is a dual single-phase PWM controller with

integrated MOSFET drivers, compliant with Intel IMVP7

Pulse Width Modulation Specification to support both

CPU core andGPU core power. This part adoptsG-NAVP^TM

(Green-NativeAVP), which is a Richtek proprietary topology

derived from finite DC gain compensator in constant on-

time control mode. G-NAVP^TMmakes this part an easy

setting PWM controller to meet all Intel AVP (Active

Voltage Positioning) mobile CPU/GPU requirements. The

RT8167B uses SVIDinterface to control an 8-bitDAC for

output voltage programming. The built-in high accuracy

DAC converts the received VID code into a voltage value

ranging from 0V to 1.52V with 5mV step voltage. The

system accuracy of the controller can reach 0.8%. The

RT8167B operates in continuous conduction mode or

diode emulation mode, according to the SVIDcommand.

The maximum efficiency can reach up to 90% in different

operating modes according to different load conditions.

The droop function (load line) can be easily programmed

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

compensation, the load transient response can achieve

optimized AVP performance.

and GPU Core Power

^IMVP7 Compatible Power Management States

^Serial VID Interface

^G-NAVP^TMTopology

^AVP for CPU VR Only

^0.5% DAC Accuracy

^0.8% System Accuracy

^Differential Remote Voltage Sensing

^Built-in ADC for Platform Programming

 SETINI/SETINIA for CPU/GPU Core VR Initial

Startup Voltage

 TMPMAX to Set Platform Maximum Temperature

 ICCMAX/ICCMAXA for CPU/GPU Core VR

Maximum Current

 Power Good Indicator : VR_READY/VRA_READY for

CPU/GPU Core Power

 Thermal Throttling Indicator : VRHOT

 Diode Emulation Mode at Light Load Condition

 Fast Line/Load Transient Response

 Switching Frequency up to 1MHz per Phase

 OVP, UVP, NVP, OTP, UVLO, OCP

 Small 40-Lead WQFN Package

 RoHS Compliant and Halogen Free

The output voltage transition slew rate is set via the SVID

interface. The RT8167B supports both DCR and sense

resistor current sensing. The RT8167B provides

VR_READY and thermal throttling output signals for

IMVP7 CPU and GPU core. This part also features

complete fault protection functions including over voltage,

under voltage, negative voltage, over current and thermal

shutdown.

Applications

 IMVP7 Intel CPU/GPU Core Power Supply

 Laptop Computers

 AVP Step-Down Converter

The RT8167B is available in a WQFN-40L 5x5 small

footprint package.

is a registered trademark of Richtek Technology Corporation.

DS8167B-01 November 2013

www.richtek.com

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