LM1086CT-ADJ Adjustable Linear Voltage Regulator 1.5A TO-220
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Prices updated: 13 Oct 2026
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About this product
The LM1086CT-ADJ is an adjustable three-terminal positive linear regulator in a TO-220 package, delivering up to 1.5 A with a maximum dropout of 1.5 V. It uses the LM317 pinout and needs only two resistors to set the output voltage, with built-in current limiting and thermal shutdown.
Specifications
- Output voltage
- Adjustable with two external resistors
- Maximum output current
- 1.5 A
- Maximum dropout
- 1.5 V at 1.5 A
- Package
- TO-220
- Pinout compatibility
- LM317 pinout
Frequently asked questions
How do I set the output voltage?
Place R1 between OUT and ADJ and R2 between ADJ and GND. The output is approximately Vout = 1.25 V × (1 + R2/R1). The adjust-pin current adds a small error, so refer to the datasheet for precise designs.
Does it need input and output capacitors?
An input capacitor is typically not needed unless the regulator is far from the main input filter capacitors. The output capacitor can be ceramic, provided its ESR is appropriate, as stated in the datasheet.
