Datasheet > RT7240A

RT7240A

更新时间： 2024-04-09 19:01:56

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	213K
描述
5A, 18V, 650kHz, ACOT? Synchronous Step-Down Converter

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RT7240A 数据手册

RT7240A

5A, 18V, 650kHz, ACOT^®SynchronousStep-Down Converter

General Description

Features

^ACOT Mode Enables Fast Transient Response

The RT7240Ais a synchronous step-downDC/DC converter

^4.5V to 18V Input Voltage Range

^5A Output Current

withAdvanced Constant On-Time (ACOT ) mode control.

It achieves high power density to deliver up to 5A output

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

^35mW Internal Low Site N-MOSFET

^Advanced Constant On-Time Control

^Support All Ceramic Capacitors

^Up to 95% Efficiency

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, RT7240Akeeps an excellent constant switching

frequency under line and load variation and the integrated

^Discontinuous Operating Mode at Light Load

^Adjustable Output Voltage from 0.765V to 8V

^Adjustable Soft-Start

^Cycle-by-Cycle Current Limit

^Input Under Voltage Lockout

^Thermal Shutdown

synchronous power switches with the ACOT 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.

Applications

 Industrial and Commercial Low Power Systems

 Computer Peripherals

 LCDMonitors and TVs

Ordering Information

 Green Electronics/Appliances

 Point of Load Regulation for High-Performance DSPs,

FPGAs, andASICs

RT7240A

Package Type

SP : SOP-8 (Exposed Pad-Option 2)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Marking Information

Note :

RT7240AGSP : Product Code

RT7240A

GSPYMDNN

Richtek products are :

YMDNN : Date Code

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

 Suitable for use in SnPb or Pb-free soldering processes.

Simplified Application Circuit

RT7240A

VIN

OUT

BOOT

Enable

VREG5

PGND

is a registered trademark of Richtek Technology Corporation.

DS7240A-01 January 2022

www.richtek.com

12 3 4 5 6 7...15

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