Datasheet > BuckConv> RT8055GQW

RT8055GQW

更新时间： 2024-09-24 11:46:35

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
14页	270K
描述
3A, 2MHz, Synchronous Step-Down Converter

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中文翻译

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数据手册

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RT8055GQW 数据手册

RT8055

3A, 2MHz, Synchronous Step-Down Converter

General Description

Features

^zHigh Efficiency : Up to 95%

The RT8055 is a high efficiency synchronous, step-down

DC/DC converter. Its input voltage range is from 2.6V to

5.5V and provides an adjustable regulated output voltage

from 0.8V to 5V while delivering up to 3A of output current.

^zLow R_DS(ON)Internal Switches : 100mΩ

^zProgrammable Frequency : 300kHz to 2MHz

^zNo Schottky Diode Required

^z0.8V Reference Voltage Allows for Low Output

Voltage

The internal synchronous low on-resistance power

switches increase efficiency and eliminate the need for

an external Schottky diode. The switching frequency is

set by an external resistor. The 100% duty cycle provides

low dropout operation extending battery life in portable

systems. Current mode operation with external

compensation allows the transient response to be

optimized over a wide range of loads and output capacitors.

^zForced Continuous Mode Operation

^z100% Duty Cycle Operation

^zInput Over Voltage Protection

^zRoHS Compliant and Halogen Free

Applications

z Portable Instruments

z Battery-Powered Equipment

z Notebook Computers

z Distributed Power Systems

z IP Phones

The RT8055 is operated in forced continuous PWM Mode

which minimizes ripple voltage and reduces the noise and

RF interference.

The RT8055 is available in the WDFN-10L 3x3 and

SOP-8 (Exposed Pad) packages.

z Digital Cameras

z 3G/3.5GData Card

Ordering Information

Pin Configurations

RT8055

(TOP VIEW)

Package Type

QW : WDFN-10L 3x3 (W-Type)

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

SHDN/RT

GND

COMP

PGND

VDD

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Note :

PVDD

WDFN-10L 3x3

Richtek products are :

SHDN/RT

GND

COMP

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

GND

VDD

PVDD

PGND

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

SOP-8 (Exposed Pad)

is a registered trademark of Richtek Technology Corporation.

DS8055-05 November 2012

www.richtek.com

12 3 4 5 6 7...14

中文翻译

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