Datasheet > BuckConv> RT8058GQW

RT8058GQW

更新时间： 2024-09-24 03:11:43

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
15页	236K
描述
1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

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中文翻译

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数据手册

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RT8058GQW 数据手册

Preliminary

RT8058

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

General Description

Features

l 0.6V Reference Allows Low Output Voltage

l Low Dropout Operation : 100% Duty Cycle

l 2A Load Current

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.

l < 2uA Shutdown Current

l Up to 95% Efficiency

l No Schottky Diode Required

l 1MHZ Constant Switching Frequency

l Low R_DS(ON)Internal Switches

l Internally Compensated

l Internal Soft-Start

l Over temperature Protection

l Short Circuit Protection

l Small 16-Lead WQFN Package

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

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

Applications

Ordering Information

l Portable Instruments

l Microprocessors andDSP Core supplies

l CellularTelephones

RT8058

Package Type

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

l Wireless andDSL Modems

l Digital Cameras

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

l PC Cards

Note :

Pin Configurations

Richtek Pb-free and Green products are :

}RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

(TOP VIEW)

16 15 14 13

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

}100% matte tin (Sn) plating.

12 PVDD

PGND

PVDD

PGND

PVDD

VDD

WQFN-16L 3x3

DS8058-02 August 2007

www.richtek.com

12 3 4 5 6 7...15

中文翻译

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