Datasheet > RT3612EB

RT3612EB

更新时间： 2025-07-24 15:50:03

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
47页	757K
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RT3612EB 技术参数

Status：	Active	VID Table Support：	IMVP9
Number of Phases：	2	Vcc (typ) (V)：	5
Vin (min) (V)：	4.5	Vin (max) (V)：	24
Accuracy (Vout>=1V) (+/- %)：	0.5	Freq (typ) (kHz)：	600
Built-in DAC Generator：	Yes	Number of MOSFET Drivers：	2
Features：	Adjustable Frequency;Cycle-by-Cycle Current Limit;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：	WQFN4x4-32

RT3612EB 数据手册

RT3612EB

2-Phase PWM Controller with Dual Integrated Drivers for

IMVP9 CPU Core Power Supply

General Description

Features

^Intel IMVP9 Serial VID Interface Compatible Power

The RT3612EB is a 2/1 phase synchronous buck

controller designed to meet Intel IMVP9 compatible CPU

specification with a serial VID control interface. The

RT3612EB adoptsG-NAVP^TM(GreenNativeAVP) which

is Richtek's proprietary topology derived from finite DC

gain of EA amplifier 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 RT3612EB features a new

generation of quick response mechanism (Adaptive Quick

Response,AQR) to optimizeAVP performance during load

transient and reduce output capacitors. The RT3612EB

supports mode transition function with various operating

states. A serial VID (SVID) interface is built in the

RT3612EB to communicate with Intel IMVP9 compliant

CPU. The RT3612EB supports VID on-the-fly function with

three different slew rates: Fast, Slow and Decay. By

utilizing theG-NAVP^TMtopology, the operating frequency

of the RT3612EB 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 accuracy

DAC converts the SVID code ranging from 0V to 2.74V

with 10mV per step. The RT3612EB integrates a high

accuracyADC for platform and function settings, such as

ICCMAX, switching frequency, over-current threshold and

AQR trigger level. The RT3612EB provides VR Ready and

thermal indicators. It also features complete fault

protection functions including over-voltage (OV), under-

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

(UVLO).

Management States

^2/1 Phase PWM Controller and 2 Embedded

MOSFET Drivers

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

Positioning) Topology

^0.5% DAC Accuracy

^Differential Remote Voltage Sensing

^Built-in ADC for Platform Programming and

Reporting

^Accurate Current Balance

 System Thermal Compensated AVP

 Diode Emulation Mode at Light Load Condition

 Fast Transient Response-Adaptive Quick Response

(AQR)

 VR Ready Indicator

 Thermal Monitoring and Indicator

 Current Monitoring

 IMVP9 System Input Power Monitoring

 OVP, OCP, UVLO, UVP

 Switching Frequency Range Setting

 Slew Rate Setting

 DVID Enhancement

 Acoustic Noise Suppression

 Small 32-Lead WQFN Package

Applications

 IMVP9 Intel Core Supply

 Notebook Computer Multi-Phase CPU Core Supply

 AVP Step-Down Converter

Simplified Application Circuit

RT3612EB

VR_READY

To PCH

MOSFET

PHASE1

PHASE2

VR_HOT#

VCLK

VDIO

MOSFET

To CPU

CORE

ALERT#

is a registered trademark of Richtek Technology Corporation.

DS3612EB-02 December 2019

www.richtek.com

12 3 4 5 6 7...47

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