LM1086IT-3.3 Datasheet, PDF (1/24 Pages) Texas Instruments – LM1086 1.5A Low Dropout Positive Regulators

LM1086
www.ti.com
SNVS039H – JUNE 2000 – REVISED MAY 2013
LM1086 1.5A Low Dropout Positive Regulators
Check for Samples: LM1086
FEATURES
1
•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
• Line Regulation 0.015% (typical)
• Load Regulation 0.1% (typical)
APPLICATIONS
• SCSI-2 Active Terminator
• High Efficiency Linear Regulators
• Battery Charger
• Post Regulation for Switching Supplies
• Constant Current Regulator
• Microprocessor Supply
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.
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.
The LM1086 circuit includes a zener trimmed
bandgap reference, current limiting and thermal
shutdown.
Connection Diagram
Figure 1. TO-220
Top View
Figure 2. DDPAK/TO-263
Top View
ADJ/GND
1
V_IN
2
N/C
3
N/C
4
V_OUT
8
V_OUT
7
V_OUT
6
V_OUT
5
N/C
Pins 6, 7, and 8 must be tied together.
Figure 3. WSON
Top View
Figure 4. Basic Functional Diagram,
Adjustable Version
Figure 5. Application Circuit
1.2V to 15V Adjustable Regulator
1
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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.
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