SNVS037F – SEPTEMBER 1999 – REVISED MARCH 2013
LM1084 5A Low Dropout Positive Regulators
Check for Samples:
1
FEATURES
•
Available in 3.3V, 5.0V, 12V and Adjustable
Versions
Current Limiting and Thermal Protection
Output Current 5A
Industrial Temperature Range
−40°C
to 125°C
Line Regulation 0.015% (typical)
Load Regulation 0.1% (typical)
DESCRIPTION
The LM1084 is a series of low dropout voltage
positive regulators with a maximum dropout of 1.5V
at 5A of load current. It has the same pin-out as TI's
industry standard LM317.
The LM1084 is available in an adjustable version,
which can set the output voltage with only two
external resistors. It is also available in three fixed
voltages: 3.3V, 5.0V and 12.0V. The fixed versions
intergrate the adjust resistors.
The LM1084 circuit includes a zener trimmed
bandgap reference, current limiting and thermal
shutdown.
2
•
•
•
•
•
APPLICATIONS
•
•
•
Post Regulator for Switching DC/DC Conveter
High Efficiency Linear Regulators
Battery Charger
Connection Diagram
Figure 1. TO-220 Top View
Figure 2. DDPAK/TO-263 Top View
Figure 3. Basic Functional Diagram, Adjustable
Version
1
Figure 4. Application Circuit
1.2V to 15V Adjustable Regulator
2
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.
Copyright © 1999–2013, Texas Instruments Incorporated
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.
TI [ TEXAS INSTRUMENTS ]
