Datasheet > RT6201A

RT6201A

更新时间： 2024-04-09 18:58:44

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	219K
描述
4A, 18V, 650kHz, ACOT? Synchronous Step-Down Converter

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RT6201A 数据手册

RT6201A/B

4A, 18V, 650kHz, ACOT^®SynchronousStep-Down Converter

General Description

Features

^ACOT Mode Enables Fast Transient Response

The RT6201A/B is a synchronous step-down DC/DC

^4.5V to 18V Input Voltage Range

^4A Output Current

converter withAdvanced Constant On-Time (ACOT ) mode

control. It achieves high power density to deliver up to 4A

output current from a 4.5V to 18V input supply. The

^50mΩ Internal Low Side N-MOSFET

^Advanced Constant On-Time Control

^Support All Ceramic Capacitors

^Up to 95% Efficiency

proprietary ACOT mode offers an optimal transient

response over a wide range of loads and all kinds of ceramic

capacitors, which allows the device to adopt very low ESR

output capacitor for ensuring performance stabilization. In

addition, RT6201A/B keeps an excellent constant

switching frequency under line and load variation and the

^650kHz Switching Frequency at all Load Current

(RT6201B)

^Discontinuous Operating Mode at Light Load

(RT6201A)

integrated synchronous power switches with theACOT

mode operation provides high efficiency in whole output

current load range. Cycle-by-cycle current limit provides

an accurate protection by a valley detection of low side

MOSFET and external soft-start setting eliminates input

current surge during startup. Protection functions include

thermal shutdown for RT6201A/B.

^Adjustable Output Voltage from 0.765V to 8V

^Adjustable Soft-Start

^Cycle-by-Cycle Current Limit

^Input Under Voltage Lockout

^Thermal Shutdown

^RoHS Compliant and Halogen Free

The RT6201A/B are available in the SOP-8 (Exposed Pad)

package.

Applications

 Industrial and Commercial Low Power Systems

 Computer Peripherals

Pin Configuration

 LCDMonitors and TVs

(TOP VIEW)

 Green Electronics/Appliances

 Point of Load Regulation for High-Performance DSPs,

FPGAs, andASICs

VIN

BOOT

GND

VREG5

GND

SOP-8 (Exposed Pad)

Simplified Application Circuit

RT6201A/B

VIN

OUT

BOOT

Enable

VREG5

GND

is a registered trademark of Richtek Technology Corporation.

DS6201A/B-01 January 2022

www.richtek.com

12 3 4 5 6 7...15

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