V
IN
N/C
N/C
V
OUT
1
3
4
2
6
5
7
8
ADJ/GND
N/C
V
OUT
V
OUT
V
OUT
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
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• Available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, 5V
voltage regulators with a maximum dropout of 1.5V at
and Adjustable Versions
1.5A of load current. It has the same pin-out as TI's
• Current Limiting and Thermal Protection
industry standard LM317.
• Output Current 1.5A
The LM1086 is available in an adjustable version,
• Line Regulation 0.015% (typical)
which can set the output voltage with only two
external resistors. It is also available in six fixed
• Load Regulation 0.1% (typical)
voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V.
The fixed versions integrate the adjust resistors.
APPLICATIONS
The LM1086 circuit includes a zener trimmed
• SCSI-2 Active Terminator
bandgap reference, current limiting and thermal
• High Efficiency Linear Regulators
shutdown.
• Battery Charger
• Post Regulation for Switching Supplies
• Constant Current Regulator
• Microprocessor Supply
Connection Diagram
Pins 6, 7, and 8 must be tied together.
Figure 1. TO-220 Figure 2. DDPAK/TO-263 Figure 3. WSON
Top View Top View Top View
Figure 4. Basic Functional Diagram, Figure 5. Application Circuit
Adjustable Version 1.2V to 15V Adjustable Regulator
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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.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2000–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
