LM3490IM5-12 Datasheet, PDF (1/17 Pages) Texas Instruments – LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-

LM3490
www.ti.com
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
FEATURES
1
•2 3.3, 5, 12, and 15V Versions Available
• Logic-Controlled ON/OFF
• Packaged in the Tiny 5-Lead SOT-23 Package
APPLICATIONS
• Tiny Alternative to LM78LXX Series and
Similar Devices
• Tiny 5V±5% to 3.3V, 100 mA Converter
• Post Regulator for Switching DC/DC Converter
• Bias Supply for Analog Circuits
KEY SPECIFICATIONS
• 30V Maximum Input for Operation
• 1.2V Specified Maximum Dropout over Full
Load and Temperature Ranges
• 100 mA Specified Load Current
• ±5% Specified Output Voltage Tolerance over
Full Load and Temperature Ranges
• −40 to +125°C Junction Temperature Range for
Operation
DESCRIPTION
The LM3490 is an integrated linear voltage regulator.
It features operation from an input as high as 30V
and a specified maximum dropout of 1.2V at the full
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
powering subsystems ON and OFF as needed.
The 5, 12, and 15V members of the LM3490 series
are intended as tiny alternatives to industry standard
LM78LXX series and similar devices. The 1.2V quasi
low dropout of LM3490 series devices makes them a
nice fit in many applications where the 2 to 2.5V
dropout of LM78LXX series devices precludes their
(LM78LXX series devices) use.
The LM3490 series features a 3.3V member. The
SOT packaging and quasi low dropout features of the
LM3490 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.
Typical Application Circuit
Connection Diagram
Figure 1. Top View
SOT-23 Package
5-Lead, Molded-Plastic Small-Outline Transistor
(SOT) Package
Package Code DBV0005A
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated