Product details

Product type Power Management Die or wafer type Tested Die Rating Military Operating temperature range (°C) -40 to 85
Product type Power Management Die or wafer type Tested Die Rating Military Operating temperature range (°C) -40 to 85
DIESALE (Y) See data sheet
  • 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
  • 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

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.

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.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LM1086-MIL 1.5-A Low Dropout Positive Voltage Regulator datasheet PDF | HTML Jun 24, 2017
Application note A Topical Index of TI LDO Application Notes (Rev. F) Jun 27, 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML Aug 9, 2017
Application note Linear power for automated industrial systems Jan 9, 2015
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) May 6, 2013
Application note AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) May 6, 2013
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) May 5, 2013
Application note Packaging Limits Range of Linear Regulators May 8, 2010
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) Jun 4, 2008
Application note Understanding the Terms and Definitions of LDO Voltage Regulators Oct 21, 1999

Design & development

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Simulation model

LM1086-1.8V PSpice Transient Model

SNVMB41.ZIP (72 KB) - PSpice model
Supported products & hardware
Simulation model

LM1086-1.8V Unencrypted PSpice Transient Model

SNVMB40.ZIP (2 KB) - PSpice model
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Simulation model

LM1086-2.5V PSpice Transient Model

SNVMB39.ZIP (72 KB) - PSpice model
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LM1086-2.5V Unencrypted PSpice Transient Model

SNVMB38.ZIP (2 KB) - PSpice model
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Simulation model

LM1086-3.3V PSpice Transient Model

SNVMB37.ZIP (72 KB) - PSpice model
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Simulation model

LM1086-3.3V Unencrypted PSpice Transient Model

SNVMB36.ZIP (2 KB) - PSpice model
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LM1086-5.0V PSpice Transient Model

SNVMB34.ZIP (72 KB) - PSpice model
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LM1086-5.0V Unencrypted PSpice Transient Model

SNVMB35.ZIP (2 KB) - PSpice model
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Simulation model

LM1086-ADJ PSpice Transient Model

SNVMB33.ZIP (72 KB) - PSpice model
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Simulation model

LM1086-ADJ Unencrypted PSpice Transient Model

SNVMB32.ZIP (2 KB) - PSpice model
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