LM1086-MIL - 1.5A Fixed / Adjustable Output Linear Regulator

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 voltageversion 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 filtercapacitors. Output capacitor can be replaced with ceramic and appropriate ESR.

The LM1086-MIL circuit includes a zener trimmed bandgap reference, current limiting, andthermal shutdown. Because the LM1086-MIL regulator is floating and detects only the input-to-outputdifferential voltage, supplies of several hundred volts can be regulated as long as the maximuminput-to-output differential is not exceeded. Exceeding the maximum input-to-output deferentialwill result in short-circuiting the output. By connecting a fixed resistor between the adjustmentpin 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.

• 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

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