The LM1085 is a regulator with a maximum dropout of 1.5 V at 3 A of load current. It 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 LM1085. Fixed output voltage versions integrate the adjust resistors.
The LM1085 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown.
Refer to the LM1084 for the 5A version, and the LM1086 for the 1.5A version.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM1085 3-A Low Dropout Positive Regulators datasheet (Rev. H) | PDF | HTML | 09 Jan 2015 |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 27 Jun 2019 | ||
| Selection guide | Low Dropout Regulators Quick Reference Guide (Rev. P) | 21 Mar 2018 | ||
| Application note | Linear power for automated industrial systems | 09 Jan 2015 | ||
| Application note | AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) | 06 May 2013 | ||
| Application note | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 06 May 2013 | ||
| Application note | Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) | 05 May 2013 | ||
| Application note | Packaging Limits Range of Linear Regulators | 08 May 2010 | ||
| Application note | Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) | 04 Jun 2008 | ||
| Application note | Understanding the Terms and Definitions of LDO Voltage Regulators | 21 Oct 1999 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TO-220 (NDE) | 3 | Ultra Librarian |
| TO-263 (KTT) | 3 | Ultra Librarian |
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