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LM1085IT-12

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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm1085it-12factory-2.0.0extractor-text

Verified LM1085IT-12

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LM1085IT-12 · TO-220 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 33-page datasheet
  • •distributor (warn): no ['digikey'] number
  • ✓family: TO-220-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-i4vjpogb/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lm1085it-12.kicad_sym✓ lm1085it-12.kicad_mod✓ lm1085it-12.step
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Contents

README

markdown

LM1085IT-12

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

LM1085IT-12 from Texas Instruments, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin for the fixed output voltage versions of the LM1085.
2 OUTPUT power_out Output voltage pin for the regulator.
3 INPUT power_in Input voltage pin for the regulator; the maximum input-to-output voltage differential for the LM1085-12 is 18 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-220
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage VOUT 11.88 12 12.12 V LM1085-12, IOUT = 0 mA, VIN = 15 V, 0 ≤ IOUT ≤ IFULL LOAD, 13.5 V ≤ VIN ≤ 25 V 5
Output voltage over temperature VOUT 11.76 12 12.24 V LM1085-12, IOUT = 0 mA, VIN = 15 V, 0 ≤ IOUT ≤ IFULL LOAD, 13.5 V ≤ VIN ≤ 25 V, -40°C ≤ TJ ≤ 125°C 5
Line regulation ΔVOUT 1 25 mV LM1085-12, IOUT = 0 mA, 13.5 V ≤ VIN ≤ 25 V 5
Line regulation over temperature ΔVOUT 2 25 mV LM1085-12, IOUT = 0 mA, 13.5 V ≤ VIN ≤ 25 V, -40°C ≤ TJ ≤ 125°C 5
Load regulation ΔVOUT 12 36 mV LM1085-12, VIN = 15 V, 0 ≤ IOUT ≤ IFULL LOAD 5
Load regulation over temperature ΔVOUT 24 72 mV LM1085-12, VIN = 15 V, 0 ≤ IOUT ≤ IFULL LOAD, -40°C ≤ TJ ≤ 125°C 5
Current limit ILIMIT 3.2 5.5 A LM1085-12, VIN = 17 V, -40°C ≤ TJ ≤ 125°C 6
Quiescent current IGND 5 10 mA LM1085-12, VIN ≤ 25 V, -40°C ≤ TJ ≤ 125°C 6
Dropout voltage VDO 1.3 1.5 V ΔVREF, ΔVOUT = 1%, IOUT = 3 A, -40°C ≤ TJ ≤ 125°C 5
Ripple rejection 54 60 dB LM1085-12, VIN = 15 V, -40°C ≤ TJ ≤ 125°C 6
Maximum input to output voltage differential 18 V LM1085-12 4
Junction temperature (absolute maximum) TJ 150 °C 4
Lead temperature 260 °C to 10 sec 4
Storage temperature range Tstg -65 150 °C 4
Junction temperature (recommended operating) TJ -40 125 °C 4
Junction-to-ambient thermal resistance RθJA 22.8 °C/W NDE (TO-220 3-pin) package 4
Junction-to-case (top) thermal resistance RθJC(top) 15.6 °C/W NDE (TO-220 3-pin) package 4
Junction-to-board thermal resistance RθJB 4.2 °C/W NDE (TO-220 3-pin) package 4
Junction-to-top characterization parameter ψJT 2.2 °C/W NDE (TO-220 3-pin) package 4
Junction-to-board characterization parameter ψJB 4.2 °C/W NDE (TO-220 3-pin) package 4
Junction-to-case (bottom) thermal resistance RθJC(bot) 0.7 °C/W NDE (TO-220 3-pin) package 4

CAD (KiCad official)

  • Symbol: LM1085IT-12
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: lm1085it-12-etched.step / lm1085it-12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1085it-12.step / lm1085it-12.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (33 pp, sha256 a5dfff6585a11b3c, retrieved 2026-11-06, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF