Datasheet > RT8692

RT8692

更新时间： 2024-09-25 17:01:59

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
26页	987K
描述
Dual-Phase PWM Controller with Dual Integrated Drivers

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RT8692 数据手册

RT8692

Dual-Phase PWM Controller with Dual Integrated Drivers

General Description

Features

⚫ Dual-Phase PWM Controller

The RT8692 is a 2/1 phase synchronous Buck PWM

controller optimized for high performance graphic

microprocessor. The IC integrates a Constant-On-Time

(COT) PWM controller, two MOSFET drivers with

internal bootstrap diodes, as well as channel current

balance and protection functions including overvoltage

protection (OVP), undervoltage protection (UVP),

current limit, and thermal shutdown into the WQFN-20L

3x3 package.

⚫ V

OUT

Operating Range: 0.3V to 2V

⚫ 1% High Accuracy 2V Reference

⚫ Differential Remote Voltage Sensing

⚫ Power State Indicator

 1P-CCM/2P-CCM/1P-DEM/2P-DEM

⚫ Two Embedded MOSFET Drivers and Embedded

Switching Boot Diode

⚫ External Reference Input Control

⚫ Dynamic Phase Number Control

The RT8692 adopts R

current sensing technique.

DS(ON)

⚫ Lossless R

Current Sensing for Current

DS(ON)

Current limit is accomplished through continuous

inductor current sensing, while R current sensing

Balance

DS(ON)

⚫ Internal/External Soft-Start

is used for accurate channel current balance. Using the

method of current sampling utilizes the best advantages

of each technique.

⚫ Adjustable Current-Limit Threshold

⚫ Adjustable Switching Frequency

⚫ UVP/OVP Protection

The RT8692 features external reference input control,

of which the feedback voltage is regulated and tracks

external input reference voltage. Other features include

adjustable switching frequency, dynamic phase number

control, internal soft-start, power good indicator, and

enable functions.

⚫ Shoot Through Protection and Short Pulse Free

Technology

⚫ Thermal Shutdown

⚫ Power Good Indicator (EN to PG high = 500s)

Applications

⚫ Desktop PC Memory, VTT Power

⚫ Chipset/RAM PowerSupply

⚫ GenericDC-DC PowerRegulator

Simplified Application Circuit

RT8692

BOOT1

PVCC

UGATE1

PHASE1

OUT

TON

PGOOD

PGOOD OCSET/SS

PSI

Enable

BOOT2

UGATE2

VREF

PHASE2

REFIN

RGND

VSNS

GND_SNS

OUT_SNS

GND

is a registered trademark of Richtek Technology Corporation.

DS8692-00

August 2023

www.richtek.com

12 3 4 5 6 7...26

中文翻译

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