LM1086-MIL Datasheet, PDF (1/23 Pages) Texas Instruments – 1.5-A Low Dropout Positive Voltage Regulator

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LM1086-MIL
SNVSAX4 – JUNE 2017
LM1086-MIL 1.5-A Low Dropout Positive Voltage Regulator
1 Features
•1 Available in Fixed 1.8-V, 2.5-V, 3.3-V, 5-V
Versions
• Available in Adjustable Version
• Current Limiting and Thermal Protection
• 2% Output Accuracy
• Output Current 1.5 A
• Line Regulation 0.015% (Typical)
• Load Regulation 0.1% (Typical)
• Maximum Input Voltage up to 29 V
• Minimum Adjustable Output Voltage
Down to 1.25 V
• Stable with Ceramic Output Capacitor with ESR
• Temperature Range : –40°C to +125°C
2 Applications
• High-Efficiency Linear Regulators
• Battery Chargers
• Post Regulation for Switching Supplies
• Constant Current Regulators
• Microprocessor Supplies
• Audio Amplifiers Supplies
• Fire Alarm Control
3 Description
The LM1086-MIL is a regulator with a maximum
dropout of 1.5 V at 1.5 A of load current. The device
has the same pin-out as TI's industry standard
LM317.
Two resistors are required to set the output voltage of
the adjustable output voltage version of the LM1086-
MIL. Fixed output voltage versions integrate the
adjust resistors. Typically, no input capacitor is
needed unless the device is situated more than 6
inches from the input filter capacitors. Output
capacitor can be replaced with ceramic and
appropriate ESR.
The LM1086-MIL circuit includes a zener trimmed
bandgap reference, current limiting, and thermal
shutdown. Because the LM1086-MIL regulator is
floating and detects only the input-to-output
differential voltage, supplies of several hundred volts
can be regulated as long as the maximum input-to-
output differential is not exceeded. Exceeding the
maximum input-to-output deferential will result in
short-circuiting the output. By connecting a fixed
resistor between the adjustment pin and output, the
LM1086-MIL can be also used as a precision current
regulator.
For applications requiring greater output current, refer
to LM1084 for the 5-A version, and the LM1085 for
the 3-A version.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
WSON (8)
4.00 mm × 4.00 mm
LM1086-MIL
DDPAK/TO-263 (3) 10.18 mm × 8.41 mm
TO-220 (3)
14.986 mm × 10.16 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.