RT9182

1

DS9182-17

March 2007

www.richtek.com

Pin Configurations

Ordering Information

Marking Information

For marking information, contact our sales representative

directly or through a RichTek distributor located in your

area, otherwise visit our website for detail.

Dual, Low-Noise, 200mA LDO Regulator

Features

Up to 200mA Output Current (Each LDO)

Dual Shutdown Pins Control Each Output

124

Current Limiting and Thermal Protection

Short Circuit Protection

120mV Dropout at 100mA Load

RoHS Compliant and 100% Lead (Pb)-Free

Applications

Cellular Phones

Laptop, Notebook, and Palmtop Computers

Battery-powered Equipment

Hand-held Equipment

Wireless LAN

(TOP VIEW)

SOT-23-6

General Description

The RT9182 is a dual-channel, low noise, and low dropout

regulator supplying up to 200mA current at each channel.

The output voltage ranges from 1.5V to 3.3V in 100mV

increments and 2% accuracy by operating from a +2.7V

to +5.5V input.

The RT9182 uses an internal PMOS as the pass device,

which consumes 165

μA supply current (both LDOs on)

independent of load current and dropout conditions. The

EN1 and EN2 pins control each output respectively. When

both outputs shutdown simultaneously, the chip will be

turn off and consumes nearly zero operation current

which is suitable for battery-power devices. Other

features include a current limiting, and over temperature

protection.

12

3

4

5

6

VOUT2 GND

EN2

EN1

VIN

VOUT1

Note : There is no pin1 indicator on top mark for SOT-23-6

type, and pin 1 will be lower left pin when reading top mark

from left to right.

Note :

RichTek Pb-free and Green 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.

100%matte tin (Sn) plating.

RT9182

Package Type

ES : SOT-23-6

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

Output Voltage

A : 2.8V (Output1), 2.8V (Output2)

B : 3.0V (Output1), 3.0V (Output2)

C : 2.8V (Output1), 3.0V (Output2)

D : 2.8V (Output1), 2.5V (Output2)

E : 2.8V (Output1), 1.8V (Output2)

F : 2.5V (Output1), 2.5V (Output2)

G : 2.5V (Output1), 1.8V (Output2)

H : 3.3V (Output1), 2.5V (Output2)

I : 3.3V (Output1), 1.8V (Output2)

J : 3.0V (Output1), 2.5V (Output2)

K : 3.0V (Output1), 1.8V (Output2)

L : 2.8V (Output1), 1.85V (Output2)