Datasheet > RT3605BE

RT3605BE

更新时间： 2024-09-18 20:03:15

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
53页	769K
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RT3605BE 技术参数

Status：	Active	VID Table Support：	IMVP8
Number of Phases：	1;2;3	Vcc (typ)(V)：	5
Vin (min)(V)：	24	Vin (max)(V)：	4.5
Accuracy (Vout>=1V)(+/- %)：	0.5	Freq (typ)(kHz)：	600
Built-in DAC Generator：	Yes	Number of MOSFET Drivers：	0;0;0
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

RT3605BE 数据手册

RT3605BE

Triple Channel PWM Controller for IMVP8 Mobile CPU Core

Power Supply

General Description

Features

^Intel IMVP8 Serial VID Interface Compatible Power

The RT3605BE is an IMVP8 compliant CPU power

controller which includes three voltage rails : a 3/2/1 phase

synchronous Buck controller, the MAIN VR, a 2/1 phase

synchronous Buck controller, the Auxiliary VR, and a

single phase synchronous Buck controller, the VCCSA

VR. The RT3605BE adoptsG-NAVP^TM(GreenNativeAVP)

which is Richtek's proprietary topology derived from finite

DC gain of EAamplifier with current mode control, making

it easy to set the droop to meet all Intel CPU requirements

of AVP (Adaptive Voltage Positioning). Based on the G-

NAVP^TMtopology, the RT3605BE also features a quick

response mechanism for optimized AVP performance

during load transient. The RT3605BE supports mode

transition function with various operating states. A serial

VID (SVID) interface is built in to communicate with Intel

IMVP8 compliant CPU. The RT3605BE supports VIDon-

the-fly function with three different slew rates : Fast, Slow,

and Decay. By utilizing the G-NAVP^TMtopology, the

operating frequency of the RT3605BE varies with VID,

load, and input voltage to further enhance the efficiency

even in CCM. Moreover, the G-NAVP^TMwith CCRCOT

(Constant Current Ripple COT) technology provides

superior output voltage ripple over the entire input/output

range. The built-in high accuracyDAC converts the SVID

code ranging from 0.25V to 1.52V with 5mV per step. The

RT3605BE integrates a high accuracy ADC for platform

setting functions, such as quick response trigger level.

The RT3605BE provides VR ready output signals. It also

features complete fault protection functions including over-

voltage (OV), over-current (OC) and under-voltage lockout

(UVLO). The RT3605BE is available in the WQFN-52L

6x6 small foot print package.

Management States

^3/2/1 Phase (MAIN VR) + 2/1 Phase (Auxiliary VR) +

Single Phase (VCCSA VR) PWM Controller

^Embedded Audio Noise Suppress Function

^Support Multi-Source Dr.MOS and MOSFET

^G-NAVP^TM(Green Native Adaptive Voltage

Positioning) Topology

^0.5% DAC Accuracy

^Differential Remote Voltage Sensing

^Built-in ADC for Platform Programming

 Accurate Current Balance

 System Thermal Compensated AVP

 Diode Emulation Mode at Light Load Condition for

Multiple or Single Phase Operation

 Fast Transient Response

 VR Ready Indicator

 Thermal Throttling

 Current Monitor Output

 OVP, OCP, UVLO

 Slew Rate Setting

 DVID Enhancement

Applications

 IMVP8 Intel Core Supply

 Notebook/Desktop Computer/ Servers Multi-Phase CPU

Core Supply

 AVP Step-Down Converter

Simplified Application Circuit

RT3605BE

Driver MOSFET

To PCH

VR_READY

PWM_SA

AXG

PWM1_AUXI

PWM2_AUXI

MOSFET

Driver MOSFET

Driver

VR_HOT

VCLK

To CPU

CORE

VDIO

Driver

PWM1_MAIN

PWM2_MAIN

PWM3_MAIN

MOSFET

ALERT

Driver MOSFET

is a registered trademark of Richtek Technology Corporation.

DS3605BE-00 December 2019

www.richtek.com

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