Datasheet > RT7297CHZSP

RT7297CHZSP

更新时间： 2024-09-17 22:45:43

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	208K
描述
IC REG BUCK ADJ 3A SYNC 8SOP

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数据手册

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RT7297CHZSP 数据手册

RT7297C

3A, 18V, 800kHz Synchronous Step-Down Converter

General Description

Features



1.5% High Accuracy Reference Voltage

The RT7297C is a high efficiency, monolithic synchronous

step-down DC/DC converter that can deliver up to 3A

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

RT7297C's current mode architecture and external

compensation allow the transient response to be

optimized over a wide input voltage range and loads.

Cycle-by-cycle current limit provides protection against

shorted outputs, and soft-start eliminates input current

surge during start-up. The RT7297C 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 RT7297C is available in

an SOP-8 (Exposed Pad) package.

^4.5V to 18V Input Voltage Range

^3A Output Current

^Integrated N-MOSFET Switches

^Current Mode Control

^Fixed Frequency Operation : 800kHz

^Output Adjustable from 0.8V to 12V

^Up to 95% Efficiency

^Programmable Soft-Start

^Stable with Low ESR Ceramic Output Capacitors

^Cycle-by-Cycle Current Limit

^Input Under Voltage Lockout

 Output Under Voltage Protection

 Thermal Shutdown Protection

 RoHS Compliant and Halogen Free

Marking Information

Applications

 Wireless AP/Router

RT7297CxZSP : Product Number

RT7297Cx

x : H or L

ZSPYMDNN

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

BOOT

RT7297C

VIN

BOOT

OUT

GND

COMP

is a registered trademark of Richtek Technology Corporation.

DS7297C-02 April 2014

www.richtek.com

12 3 4 5 6 7...15

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