1 Features

1? Input Voltage Range: up to 30 V

? 3.3-V, 5-V, 12-V, and 15-V Versions Available

? Packaged in the Tiny 3-Lead SOT-23 Package

? 30-V Maximum Input for Operation

? 1.2-V Ensured Maximum Dropout Over Full Load

and Temperature Ranges

? 100-mA Ensured Minimum Load Current

? ±5% Ensured Output Voltage Tolerance Over Full

Load and Temperature Ranges

? ?40 to +125°C Junction Temperature Range for

Operation

2 Applications

? Tiny Alternative to LM78Lxx Series and Similar

Devices

? Tiny 5-V ±5% to 3.3-V, 100-mA Converter

? Post Regulator for Switching DC/DC Converter

? Bias Supply for Analog Circuits

3 Description

The LM3480 is an integrated linear voltage regulator.

It features operation from an input as high as 30 V and an ensured maximum dropout of 1.2 V at the full

100-mA load. Standard packaging for the LM3480 is

the 3-lead SOT-23 package.

The 5-V, 12-V, and 15-V members of the LM3480

series are intended as tiny alternatives to industry

standard LM78Lxx series and similar devices. The

1.2-V quasi-low dropout of LM3480 series devices makes them a nice fit in many applications where the

2-V to 2.5-V dropout of LM78Lxx series devices

precludes their (LM78Lxx series devices) use.

The LM3480 series also features a 3.3-V member.

The SOT-23 packaging and quasi-low dropout

features of the LM3480 series converge in this device

to provide a very nice, very tiny, 3.3-V, 100-mA bias

supply that regulates directly off the system 5-V ±5%

power supply.