Datasheet > RT5701GCP

RT5701GCP

更新时间： 2024-11-24 22:58:27

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
24页	310K
描述
IC REG BUCK PROG 4A SYNC TSSOP

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RT5701GCP 数据手册

RT5701

3MHz 4A High Efficiency Step-Down Converter with I²C

Interface

General Description

The RT5701 is a Peak-Current Mode Pulse-Width-

Modulated (PWM) step-down DC/DC converter with I²C

control interface. Capable of delivering 4Acontinuing output

current over a wide input voltage range from 2.5V to 5.5V,

the RT5701 is ideally suited for Automotive Infotainment

applications for low-voltage outputs to Micro controllers

and ASICs in Navigation, Information Display, and Audio

systems, Video systems and other battery operated

systems requiring very low Shutdown current and

Quiescent current consumption.

control mode, and so on. Other features include soft-start,

auto discharge, lower internal reference voltage, over-

temperature, and over-current protection.

Features

^2.5V to 5.5V Input Range

^Output Range from 0.3V to 5.5V

^Bank 0 : 0.3V to 0.7V

^Bank 1 : 0.6V to 1.4V

^Bank 2 : 1.2V to 2.8V

^Bank 3 : 2.4V to 5.5V

Internal synchronous rectifier with low R_DS(ON)dramatically

reduces conduction loss at PWM mode. No external

Schottky barrier diode is required in practical application.

The RT5701 enters low-dropout mode when normal PWM

cannot provide regulated output voltage by continuously

turning on the upper P-MOSFET. The RT5701 enters shut-

down mode and consumes less than 5μA when the EN

pin is pulled low. The switching ripple is easily smoothed-

out by small package filtering elements due to a fixed

operation frequency of 3MHz. This along with small

TSSOP-14 (Exposed Pad) package provides small PCB

area applications.

^The Default Value is 1.5V (VSEL = High) and 1V

(VSEL = Low)

 4A Continuing Output Current

 Support DVS in the Same Bank

^V_OUTAdjusting Range (max, min) is Settable

 High Efficiency



^84% at 5V 1.5V with 1.5A Load

 3MHz Fixed-Frequency PWM Operation

^Auto-PSM/PWM or Force-PWM Selectable

 Support Remote Ground Sensing for Accurate

Output Voltage

 Dedicated Hardware Pin to Immediately Switch

Nominal Output Voltage Setting

The RT5701 also includesDynamic Voltage Scaling (DVS)

for system low power applications.

 Output Discharging when Turning Off

 Over-Current Protection

The I²C interface let the RT5701 controllable flexibly to

select V_OUTvoltage level, peak current limit level, PWM

^OC Level Settable

Simplified Application Circuit

RT5701

PVIN

Input Power

Output

Load

AVDD

GNDR

Enable

VOUT

GND

SCL

SDA

VSEL

I C Control

VOUT Select

is a registered trademark of Richtek Technology Corporation.

DS5701-01 July 2015

www.richtek.com

12 3 4 5 6 7...24

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与RT5701GCP相关器件

型号	品牌	获取价格	描述	数据表
RT5707	RICHTEK	获取价格	暂无描述
RT5707A	RICHTEK	获取价格	暂无描述
RT5710A	RICHTEK	获取价格	暂无描述
RT5710B	RICHTEK	获取价格	暂无描述
RT5710C	RICHTEK	获取价格	暂无描述
RT5710D	RICHTEK	获取价格	暂无描述
RT5710F	RICHTEK	获取价格	暂无描述
RT5711A	RICHTEK	获取价格	1.5A, 1MHz, 6V CMCOT Synchronous Step-Down Converter
RT5711B	RICHTEK	获取价格	1.5A, 1MHz, 6V CMCOT Synchronous Step-Down Converter
RT5711C	RICHTEK	获取价格	暂无描述

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