Datasheet > RT6206A

RT6206A

更新时间： 2024-04-09 18:59:15

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
18页	283K
描述
5.5A, 18V, 650kHz, ACOT? Synchronous Step-Down Converter

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RT6206A 数据手册

RT6206A

5.5A, 18V, 650kHz, ACOT^TMSynchronous Step-Down Converter

General Description

Features

^ACOT^TMMode Enables Fast Transient Response

^4.5V to 18V Input Voltage Range

^5.5A Output Current

The RT6206Ais a synchronous step-downDC/DC converter

withAdvanced Constant On-Time (ACOT^TM) mode control.

It achieves high power density to deliver up to 5.5Aoutput

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

ACOT^TMmode 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, RT6206Akeeps an excellent constant switching

frequency under line and load variation and the integrated

synchronous power switches with the ACOT^TMmode

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 RT6206A.

^35mΩ Internal Low Side N-MOSFET

^Advanced Constant On-Time Control

^Support All Ceramic Capacitors

^Up to 95% Efficiency

^Adjustable Output Voltage from 0.765V to 7V

^Adjustable Soft-Start

^Cycle-by-Cycle Current Limit

^Input Under-Voltage Lockout

^Thermal Shutdown

 RoHS Compliant and Halogen Free

Applications

 Industrial and Commercial Low Power Systems

 Computer Peripherals

 LCDMonitors and TVs

The RT6206A are available in the TSSOP-14 (Exposed

pad), SOP-8 (Exposed Pad) and WDFN-10L 3x3

packages.

 Green Electronics/Appliances

 Point of Load Regulation for High-Performance DSPs,

FPGAs, and ASICs

Simplified Application Circuit

RT6206A

VIN

OUT

VINR*

BOOT

Enable

Power Good

PGOOD*

VREG5

GND*

PGND

* : VINR, GND pin for TSSOP-14 (Exposed Pad) only.

* : PGOOD pin for TSSOP-14 (Exposed Pad) and WDFN-10L 3x3 only.

is a registered trademark of Richtek Technology Corporation.

DS6206A-03 September 2015

www.richtek.com

12 3 4 5 6 7...18

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