LM3480 Datasheet, PDF (1/9 Pages) National Semiconductor (TI) – 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator

June 1999
LM3480
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage
Regulator
General Description
The LM3480 is an integrated linear voltage regulator. It fea-
tures operation from an input as high as 30V and a guaran-
teed maximum dropout of 1.2V at the full 100 mA load. Stan-
dard packaging for the LM3480 is the 3-lead SuperSOT^®
package.
The 5, 12, and 15V members of the LM3480 series are in-
tended as tiny alternatives to industry standard LM78LXX
series and similar devices. The 1.2V quasi low dropout of
LM3480 series devices makes them a nice fit in many appli-
cations where the 2 to 2.5V dropout of LM78LXX series de-
vices precludes their (LM78LXX series devices) use.
The LM3480 series features a 3.3V member. The SOT pack-
aging and quasi low dropout features of the LM3480 series
converge in this device to provide a very nice, very tiny 3.3V,
100 mA bias supply that regulates directly off the system
5V±5% power supply.
Key Specifications
n 30V maximum input for operation
n 1.2V guaranteed maximum dropout over full load and
temperature ranges
n 100 mA guaranteed minimum load current
n ±5% guaranteed output voltage tolerance over full load
and temperature ranges
n −40 to +125˚C junction temperature range for operation
Features
n 3.3, 5, 12, and 15V versions available
n Packaged in the tiny 3-lead SuperSOT package
Applications
n Tiny alternative to LM78LXX series and similar devices
n Tiny 5V±5% to 3.3V, 100 mA converter
n Post regulator for switching DC/DC converter
n Bias supply for analog circuits
Typical Application Circuit
Connection Diagram
DS100070-2
DS100070-1
Top View
SOT-23 Package
3-Lead, Molded-Plastic Small-Outline Transistor (SOT) Package
Package Code MA03B (Note 1)
SuperSOT ^® is a registered trademark of National Semiconductor.
© 1999 National Semiconductor Corporation DS100070
www.national.com