LM1086
www.ti.com
SNVS039H –JUNE 2000–REVISED MAY 2013
LM1086 1.5A Low Dropout Positive Regulators
Check for Samples: LM1086
1
FEATURES
DESCRIPTION
The LM1086 is a series of low dropout positive
voltage regulators with a maximum dropout of 1.5V at
1.5A of load current. It has the same pin-out as TI's
industry standard LM317.
2
•
Available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, 5V
and Adjustable Versions
•
•
•
•
Current Limiting and Thermal Protection
Output Current 1.5A
The LM1086 is available in an adjustable version,
which can set the output voltage with only two
external resistors. It is also available in six fixed
voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V.
The fixed versions integrate the adjust resistors.
Line Regulation 0.015% (typical)
Load Regulation 0.1% (typical)
APPLICATIONS
The LM1086 circuit includes
bandgap reference, current limiting and thermal
shutdown.
a zener trimmed
•
•
•
•
•
•
SCSI-2 Active Terminator
High Efficiency Linear Regulators
Battery Charger
Post Regulation for Switching Supplies
Constant Current Regulator
Microprocessor Supply
Connection Diagram
V
1
2
3
4
8
7
6
5
OUT
ADJ/GND
V
V
V
OUT
IN
V
OUT
N/C
N/C
OUT
N/C
Pins 6, 7, and 8 must be tied together.
Figure 1. TO-220
Top View
Figure 2. DDPAK/TO-263
Top View
Figure 3. WSON
Top View
Figure 4. Basic Functional Diagram,
Adjustable Version
Figure 5. Application Circuit
1.2V to 15V Adjustable Regulator
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 © 2000–2013, Texas Instruments Incorporated