LM3490

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SNVS012E – JUNE 1999 – REVISED APRIL 2013

LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-

Controlled ON/OFF

Check for Samples: LM3490

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FEATURES

DESCRIPTION

The LM3490 is an integrated linear voltage regulator.

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•

3.3, 5, 12, and 15V Versions Available

It features operation from an input as high as 30V

•

Logic-Controlled ON/OFF

and a specified maximum dropout of 1.2V at the full

•

Packaged in the Tiny 5-Lead SOT-23 Package

100 mA load. Standard packaging for the LM3490 is

the

5-lead

SOT-23

package.

A

logic-controlled

ON/OFF

feature

makes

the

LM3490

ideal

for

APPLICATIONS

powering subsystems ON and OFF as needed.

•

Tiny Alternative to LM78LXX Series and

The 5, 12, and 15V members of the LM3490 series

Similar Devices

are intended as tiny alternatives to industry standard

•

Tiny 5V±5% to 3.3V, 100 mA Converter

LM78LXX series and similar devices. The 1.2V quasi

•

Post Regulator for Switching DC/DC Converter

low dropout of LM3490 series devices makes them a

•

Bias Supply for Analog Circuits

nice fit in many applications where the 2 to 2.5V

dropout of LM78LXX series devices precludes their

(LM78LXX series devices) use.

KEY SPECIFICATIONS

The LM3490 series features a 3.3V member. The

•

30V Maximum Input for Operation

SOT packaging and quasi low dropout features of the

•

1.2V Specified Maximum Dropout over Full

LM3490 series converge in this device to provide a

Load and Temperature Ranges

very nice, very tiny 3.3V, 100 mA bias supply that

•

100 mA Specified Load Current

regulates directly off the system 5V±5% power

supply.

•

±5% Specified Output Voltage Tolerance over

Full Load and Temperature Ranges

•

−40 to +125°C Junction Temperature Range for

Operation

Typical Application Circuit

Connection Diagram

Figure 1. Top View

SOT-23 Package

5-Lead, Molded-Plastic Small-Outline Transistor

(SOT) Package

Package Code DBV0005A

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PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.