LM1086 Datasheet | National Semiconductor

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 National Semiconductor’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 three fixed voltages: 2.85V, 3.3V and 5.0V. The fixed versions integrate the adjust resistors. The LM1086 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown. The LM1086 series is available in TO-220 and TO-263 packages. D-Pak is available upon special request; contact the National Semiconductor sales representative in your area. Features n n n n n Available in 2.85V, 3.3V, 5V and Adjustable Versions Current Limiting and Thermal Protection Output Current 1.5A Line Regulation 0.015% (typical) Load Regulation 0.1% (typical) Applications n n n n n n SCSI-2 Active Terminator High Efficiency Linear Regulators Battery Charger Post Regulation for Switching Supplies Constant Current Regulator Microprocessor Supply Connection Diagrams TO-220 TO-263 DS100948-2 Top View DS100948-4 Top View Note: D-Pak package also available. Contact National Semiconductor sales representative in your area. Basic Functional Diagram, Adjustable Version DS100948-65 © 1999 National Semiconductor Corporation DS100948 .national. Ordering Information Package 3-lead TO-263 Temperature Range - 40˚C to +125˚C Part Number LM1086IS-ADJ LM1086ISX-ADJ LM1086IS-2.85 LM1086ISX-2.85 LM1086IS-3.3 LM1086ISX-3.3 LM1086IS-5.0 LM1086ISX-5.0 0˚C to +125˚C LM1086CS-ADJ LM1086CSX-ADJ LM1086CS-2.85 LM1086CSX-2.85 LM1086CS-3.3 LM1086CSX-3.3 LM1086CS-5.0 LM1086CSX-5.0 3-lead TO-220 - 40˚C to +125˚C LM1086IT-ADJ LM1086IT-2.85 LM1086IT-3.3 LM1086IT-5.0 0˚C to +125˚C LM1086CT-ADJ LM1086CT-2.85 LM1086CT-3.3 LM1086CT-5.0 Note: D-Pak package also available. Contact National Semiconductor sales representative in your area. Transport...