Datasheet > BuckConv> RT8058A

RT8058A

更新时间： 2024-09-23 12:25:07

品牌	Logo	应用领域
立锜 - RICHTEK		转换器 TI的电源Demo板
页数	文件大小	规格书
14页	285K
描述
1.2MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

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中文翻译

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技术参数
数据手册

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RT8058A 技术参数

Status：	Active	Vin (min) (V)：	2.6
Vin (max) (V)：	5.5	Number of Outputs：	1
Vout (min) (V)：	0.6	Vout (max) (V)：	5
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	2	Current Limit (typ) (A)：	3
Freq (typ) (kHz)：	1200	Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	142	Ron_LS (typ) (mOhm)：	96
Iq (typ) (mA)：	0.34	Features：	100% Duty Cycle;Current Mode Control;Enable Input;Force PWM;Internal Compensation;OCP;Power Good;Stable with Ceramic Capacitor;UVP
Package Type：	WDFN3x3-10

RT8058A 数据手册

RT8058A

1.2MHz, 2A, High Efficiency PWM Step-Down

DC/DC Converter

General Description

Features

^z0.6V Reference Allows Low Output Voltage

^zLow Dropout Operation : 100% Duty Cycle

^z2A Load Current

The RT8058Ais 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 1.2MHz

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 RT8058A operates at 100% duty cycle for low dropout

operation that extends battery life in portable devices.

^z<2μA Shutdown Current

^zUp to 95% Efficiency

^zNo Schottky Diode Required

^z1.2MHz Constant Switching Frequency

^zLow R_DS(ON)Internal Switches

^zInternally Compensated

^zInternal Soft-Start

^zOver temperature Protection

z Short Circuit Protection

z Small 10-Lead WDFN Package

z RoHS Compliant and Halogen Free

The RT8058Ais available in a WDFN-10L 3x3 package.

Applications

Ordering Information

z Portable Instruments

z Microprocessors and DSP Core supplies

z Cellular Telephones

RT8058A

Package Type

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

z Wireless and DSL Modems

z Digital Cameras

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

z PC Cards

Note :

Richtek products are :

Pin Configurations

` 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.

(TOP VIEW)

PGND

GND

POK

10 LX

GND

PVDD

VDD

Marking Information

E9= : Product Code

WDFN-10L 3x3

YMDNN : Data Code

E9=YM

DNN

DS8058A-02 April 2011

www.richtek.com

12 3 4 5 6 7...14

中文翻译

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与RT8058A相关器件

型号	品牌	获取价格	描述	数据表
RT8058GQW	RICHTEK	获取价格	1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter
RT8058PQW	RICHTEK	获取价格	1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter
RT8059	RICHTEK	获取价格	1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
RT8059GJ5	RICHTEK	获取价格
RT8060	RICHTEK	获取价格	1.5MHz, 1A High Efficiency Step-Down Converter
RT8060A	RICHTEK	获取价格	1.5MHz, 1A High Efficiency Step-Down Converter
RT8061A	RICHTEK	获取价格	3A, 1MHz, Synchronous Step-Down Converter
RT8062	RICHTEK	获取价格	2A, 2MHz, Synchronous Step-Down Converter
RT8063	RICHTEK	获取价格	3A, 2MHz, Synchronous Step-Down Converter
RT8064	RICHTEK	获取价格	2A, 2MHz, Synchronous Step-Down Converter

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