RT8058GQW Datasheet

IC型號：
RT8058GQW
PDF描述：
1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter
文件大?。?/label>
236.43KB
PDF頁數(shù)：
15頁
芯片廠家：
RICHTEK

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Preliminary

RT8058

1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

General Description

The RT8058 is a current mode PWM step-down converter.

The chip is ideal for fixed frequency and low ripple

applications over full range of load conditions. Its input

voltage range is from 2.6V to 5.5V with a constant 1MHz

switching frequency that allows it to adopt tiny, low cost

capacitors and inductors with 2mm or less in height making

it ideal for single-cell Li-lon/polymer battery applications.

The low on resistance internal MOSFET can achieve high

efficiency without the need of external schottky diodes in

wide operating ranges and the output voltage is adjustable

from 0.6V to 5V that can provide up to 2A load current.

The RT8058 operates at 100% duty cycle for low dropout

operation that extends battery life in portable devices.

The RT8058 is available in a WQFN-16L 3x3 package.

Features

0.6V Reference Allows Low Output Voltage

Low Dropout Operation : 100% Duty Cycle

2A Load Current

< 2uA Shutdown Current

Up to 95% Efficiency

No Schottky Diode Required

1MHZ Constant Switching Frequency

Low R

DS(ON)

Internal Switches

Internally Compensated

Internal Soft-Start

Over temperature Protection

Short Circuit Protection

Small 16-Lead WQFN Package

RoHS Compliant and 100% Lead (Pb)-Free

Ordering Information

RT8058

Package Type

QW : WQFN-16L 3x3 (W-Type)

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

Note :

Richtek Pb-free and Green products are :

Applications

Portable Instruments

Microprocessors and DSP Core supplies

Cellular Telephones

Wireless and DSL Modems

Digital Cameras

PC Cards

Pin Configurations

(TOP VIEW)

16 15 14 13

}

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.

}

100% matte tin (Sn) plating.

PGND

PVDD

VDD

GND

WQFN-16L 3x3

DS8058-02 August 2007

www.richtek.com

標(biāo)準(zhǔn)包裝
1
類別
集成電路 (IC)
家庭
PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器
系列
-
類型
降壓（降壓）
輸出類型
可調(diào)式
輸出數(shù)
1
輸出電壓
0.8 V ~ 5 V
輸入電壓
2.6 V ~ 5.5 V
PWM 型
電流模式
頻率 - 開關(guān)
1MHz
電流 - 輸出
2A
同步整流器
是
工作溫度
-40°C ~ 85°C
安裝類型
表面貼裝
封裝/外殼
16-WFQFN 裸露焊盤
包裝
Digi-Reel®
供應(yīng)商設(shè)備封裝
16-WQFN（3x3）
其它名稱
1028-1000-6

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