Datasheet > RT8265

RT8265

更新时间： 2024-09-24 17:00:55

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
13页	256K
描述
3A, 24V, 1MHz Asynchronous Step-Down Converter

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中文翻译

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RT8265 数据手册

RT8265

3A, 24V, 1MHz Asynchronous Step-Down Converter

General Description

Features

^zWide Operating Input Range : 4.75V to 24V

^zAdjustable Output Voltage Range : 0.8V to 15V

^zOutput Current up to 3A

The RT8265 is an asynchronous high voltage buck converter

that can support the input voltage range from 4.75V to 24V

and the output current can be up to 3A. The IC provides a

Feed-forward Voltage Mode operation to achieve the goal

of fast line transient response. The RT8265 also provides

adjustable soft-start to be a flexible solution for customers.

^z25μA Low Shutdown Current

^zPower MOSFET : 110mΩ

^zHigh Efficiency up to 93%

^z1MHz Fixed Switching Frequency

^zStable with Low ESR Output Ceramic Capacitors

^zProgrammable Soft-Start

The chip provides protection functions such as cycle-by-

cycle current limiting and thermal shutdown protection. In

shutdown mode, the regulator draws 25μA of supply current.

The RT8265 is available in a SOP-8 (Exposed Pad) surface

mount package.

^zThermal Shutdown

^zCycle-By-Cycle Over Current Protection

^zRoHS Compliant and 100% Lead (Pb)-Free

Ordering Information

RT8265

Applications

z Distributed Power Systems

Package Type

SP : SOP-8 (Exposed Pad-Option 1)

z Battery Charger

z Pre-Regulator for Linear Regulators

Lead Plating System

P : Pb Free

Pin Configurations

G : Green (Halogen Free and Pb Free)

Note :

(TOP VIEW)

Richtek products are :

BOOT

VIN

` 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.

GND

COMP

GND

SOP-8 (Exposed Pad)

Typical Application Circuit

BOOT

RT8265

VIN

4.75V to 24V

10µF/25V

4.7µH

10nF

3.3V

OUT

Chip Enable

B330A

49.9k

47µF

6.3V

0.1µF

82k

0.56nF

9 (Exposed Pad)

16k

GND

COMP

DS8265-02 March 2011

www.richtek.com

12 3 4 5 6 7...13

中文翻译

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