Datasheet > BuckConv> RT7248

RT7248

更新时间： 2024-11-12 12:23:35

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
15页	281K
描述
2A, 18V, 340kHz Synchronous Step-Down Converter

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RT7248 数据手册

RT7248

2A, 18V, 340kHz Synchronous Step-Down Converter

General Description

Features

ꢀ

1.5% High Accuracy Feedback Voltage

The RT7248 is a high efficiency, monolithic synchronous

step-downDC/DC converter that can deliver up to 2Aoutput

current from a 4.5V to 18V input supply. The RT7248's

current mode architecture and external compensation

allow the transient response to be optimized over a wide

input range and loads. Cycle-by-cycle current limit

provides protection against shorted outputs and soft-start

eliminates input current surge during start up. The RT7248

also provides under voltage protection and thermal

shutdown protection. The low current (< 3μA) shutdown

mode provides output disconnection, enabling easy power

management in battery-powered systems. The RT7248

is available in SOP-8 (Exposed Pad) package.

^ꢀInput Voltage Range : 4.5V to 18V

^ꢀ2A Output Current

^ꢀIntegrated N-MOSFETs

^ꢀCurrent Mode Control

^ꢀ340kHz Fixed Frequency Operation

^ꢀOutput Adjustable Voltage Range : 0.923V to 15V

^ꢀEfficiency Up to 95%

^ꢀProgrammable Soft-Start

^ꢀStable with Low ESR Ceramic Output Capacitors

^ꢀCycle-by Cycle Over Current Protection

^ꢀInput Under Voltage Lockout

ꢀ Output Under Voltage Protection

ꢀ Thermal Shutdown Protection

ꢀ RoHS Compliant and Halogen Free

Marking Information

RT7248xGSP : Product Number

Applications

RT7248x

x : H or N

GSPYMDNN

ꢀ Wireless AP/Router

YMDNN : Date Code

ꢀ Set-Top-Box

ꢀ Industrial and Commercial Low Power Systems

ꢀ LCDMonitors and TVs

ꢀ Green Electronics/Appliances

ꢀ Point of Load Regulation of High-PerformanceDSPs

Simplified Application Circuit

VIN

BOOT

RT7248

BOOT

OUT

Chip Enable

OUT

COMP

GND

is a registered trademark of Richtek Technology Corporation.

DS7248-01 September 2012

www.richtek.com

12 3 4 5 6 7...15

中文翻译

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与RT7248相关器件

型号	品牌	获取价格	描述	数据表
RT7248H	RICHTEK	获取价格	暂无描述
RT7248N	RICHTEK	获取价格	暂无描述
RT7249	RICHTEK	获取价格	Synchronous Step-Down Converter
RT7249GQW	RICHTEK	获取价格	Synchronous Step-Down Converter
RT7250A	RICHTEK	获取价格	2A, 17V, 340/800kHz Synchronous Step-Down Converter
RT7250B	RICHTEK	获取价格	暂无描述
RT7251A	RICHTEK	获取价格	1.5A, 17V, 340/800kHz Synchronous Step-Down Converter
RT7251B	RICHTEK	获取价格	暂无描述
RT7252A	RICHTEK	获取价格	2A, 17V, 340/800kHz Synchronous Step-Down Converter
RT7252AZSP	RICHTEK	获取价格	IC REG BUCK ADJ 2A SYNC 8SOP