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DS9166B-01 April 2011

www.richtek.com

RT9166B

Ordering Information

Note :

Richtek products are :

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.

Pin Configurations

(TOP VIEW)

SOT-89

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

600mA, Ultra-Fast Transient Response Linear Regulator

General Description

The RT9166B is a CMOS linear regulator optimized for

ultra-fast transient response. The device is capable of

supplying up to 600mA of output current and is optimized

for CD/DVD-ROM, CD/RW or wireless communication

applications. The RT9166B regulator is stable with output

capacitor as low as 3.3

μF. The other features include high

output accuracy, current limiting protection, and high ripple

rejection ratio. The RT9166B regulator is available in a

3-lead SOT-89 package.

Features

Low Quiescent Current (Typically 220

μμμμμA)

Guaranteed 600mA Output Current

Wide Operating Voltage Ranges : 2.8V to 5.5V

Ultra-Fast Transient Response

Tight Load and Line Regulation

Current Limiting Protection

Thermal Shutdown Protection

Only Low-ESR Ceramic Capacitor Required for

Stability

Custom Voltage Available

RoHS Compliant and Halogen Free

Applications

CD/DVD-ROM, CD/RW

Wireless LAN Card/Keyboard/Mouse

Battery-Powered Equipment

XDSL Router

PCMCIA Card

GND VOUT

(TAB)

VIN

23

1

Typical Application Circuit

VIN

GND

VOUT

RT9166B

3.3µF

1µF

RT9166B -

Package Type

X : SOT-89

Lead Plating System

G : Green (Halogen Free and Pb Free)

Output Voltage

12 : 1.2V