Datasheet > RT8009GB

RT8009GB

更新时间： 2024-11-11 22:59:43

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
13页	237K
描述
IC REG BCK ADJ 0.6A SYNC SOT23-5

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中文翻译

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数据手册

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RT8009GB 数据手册

RT8009

1.25MHz, 600mA, High Efficiency PWM Step-Down

DC/DC Converter

General Description

Features

^ꢀ2.5V to 5.5V Input Range

The RT8009 is a high-efficiency pulse-width-modulated

(PWM) step-downDC/DC converter. Capable of delivering

600mAoutput current over a wide input voltage range from

2.5 to 5.5V, the RT8009 is ideally suited for portable

electronic devices that are powered from 1-cell Li-ion

battery or from other power sources within the range such

as cellular phones, PDAs and handy-terminals.

^ꢀAdjustable Output From 0.5V to V_IN

^ꢀ1.0V, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V and 3.3V Fixed/

Adjustable Output Voltage

^ꢀ600mA Output Current

^ꢀ95% Efficiency

^ꢀNo Schottky Diode Required

^ꢀ1.25MHz Fixed Frequency PWM Operation

^ꢀSmall SOT-23-5 and TSOT-23-5 Package

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

Internal synchronous rectifier with low R_DS(ON)dramatically

reduces conduction loss at PWM mode. No external

Schottky diode is required in practical application. The

RT8009 automatically turns off the synchronous rectifier

while the inductor current is low and enters discontinuous

PWM mode. This can increase efficiency at light load

condition.

Applications

ꢀ Cellular Telephones

ꢀ Personal InformationAppliances

ꢀ Wireless and DSL Modems

ꢀ MP3 Players

The RT8009 enters Low-Dropout mode when normal PWM

cannot provide regulated output voltage by continuously

turning on the upper P-MOSFET. RT8009 enter shutdown

mode and consumes less than 0.1μAwhen ENpin is pulled

low.

ꢀ Portable Instruments

Ordering Information

RT8009(-

)

The switching ripple is easily smoothed-out by small

package filtering elements due to a fixed operation

frequency of 1.25MHz. This along with small SOT-23-5

and TSOT-23-5 package provides small PCB area

application. Other features include soft start, lower internal

reference voltage with 2% accuracy, over temperature

protection, and over current protection.

Package Type

B : SOT-23-5

J5 : TSOT-23-5

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

Output Voltage

Default : Adjustable

10 : 1.0V

12 : 1.2V

13 : 1.3V

15 : 1.5V

18 : 1.8V

Pin Configurations

(TOP VIEW)

FB/VOUT

25 : 2.5V

33 : 3.3V

Note :

Richtek products are :

GND EN

VIN

SOT-23-5/TSOT-23-5

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

Marking Information

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

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

DS8009-07 March 2011

www.richtek.com

12 3 4 5 6 7...13

中文翻译

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与RT8009GB相关器件

型号	品牌	获取价格	描述	数据表
RT8009GJ5	RICHTEK	获取价格	IC REG BUCK ADJ 0.6A SYNC TSOT23
RT8009PB	RICHTEK	获取价格	1.25MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter
RT8009PJ5	RICHTEK	获取价格	1.25MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter
RT8010	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8010-10GQW	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8010-10PQV	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8010-10PQW	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8010-12GQW	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8010-12PQV	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8010-12PQW	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter

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