Datasheet > RT9046

RT9046

更新时间： 2024-04-09 18:59:27

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
11页	197K
描述
Low-Dropout Linear Regulator Controller with PGOOD Indication

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RT9046 数据手册

RT9046

Low-Dropout Linear Regulator Controller with PGOOD

Indication

General Description

Features

^zProgrammable Output Voltage

The RT9046 is a low-dropout voltage regulator controller

designed specifically for use with an externalN-MOSFET

for various applications. The controller features a 2%

reference, a high current driver capability of driving a high

current/low R_DS(ON)N-MOSFET, programmable output

voltage, a power monitor with a 0.6ms delay, internal soft-

start function, under voltage protection, and chip enable

for power conservation. The device is also useful in other

high current applications. The RT9046 is available in a

small footprint package of SOT-23-6.

^zHigh Current Driver for High Current FET

^zHigh Accuracy 2% Voltage Reference

^zQuick Line and Load Transient Response

^zPower Good Monitor with Output Delay

^zInternal Soft-Start Function to Reduce Inrush Current

^zEnable Control and Under Voltage Protection

^zSmall Footprint Package SOT-23-6

^zRoHS Compliant and Halogen Free

Applications

z Large-scale, Telecom Blade Systems

Ordering Information

RT9046

z Large-scale, Mass Storage Blade Systems

z High Current Systems Requiring Sequencing

z High Current Systems Requiring Power Management

Package Type

E : SOT-23-6

Lead Plating System

G : Green (Halogen Free and Pb Free)

Note :

Pin Configurations

(TOP VIEW)

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

VCC DRI PGOOD

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

Marking Information

EN GND FB

SOT-23-6

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

Function Block Diagram

Typical Application Circuit

VCC

Reference

Voltage

0.5V

DRI

Chip Enable

PGOOD

GND

0.45V

VCC

Driver

RT9046

0.6ms

Delay

DRI

GND

PGOOD

OUT

PGOOD

= 0.5x[(R1+R2)/R2]

OUT

DS9046-01 April 2011

www.richtek.com

12 3 4 5 6 7...11

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