main
Ray Set visibility: public 2603cfa 13d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm285mx",
  "title": "LM285MX",
  "brief": "Texas Instruments Voltage Reference, SOIC-8. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "lm285mx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM285MX",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm385-adj",
    "parts": {
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      "footprint": "lm285mx.kicad_mod",
      "model_3d": "lm285mx-hero.glb",
      "model_3d_plain": "lm285mx-etched.glb",
      "model_3d_step": "lm285mx-etched.step",
      "model_3d_step_plain": "lm285mx.step",
      "lbr": "lm285mx.lbr"
    },
    "distributor_links": {
      "lcsc": "C544409",
      "mouser": "926-LM285MX"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T00:49:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "926-LM285MX",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected or tie to ground per board layout."
      },
      {
        "number": "2",
        "name": "−",
        "type": "power_in",
        "description": "Cathode / negative terminal; ground-side return path for the shunt reference current; connect to circuit ground."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected or tie to ground per board layout."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected or tie to ground per board layout."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected or tie to ground per board layout."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback / adjust pin; output voltage set by external resistor divider connected here; feedback current 13 nA typ, 35 nA max (25 °C, LM285)."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected or tie to ground per board layout."
      },
      {
        "number": "8",
        "name": "+",
        "type": "power_out",
        "description": "Anode / positive terminal; regulated reference voltage output, adjustable 1.24 V to 5.30 V at 10 μA to 20 mA operating current, 1 Ω dynamic impedance typ."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm385-adj",
        "pages": 27,
        "sha256": "0dc47d98ca08aa27",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "lm285mx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm285mx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "centre_offset_mm": 0,
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        "sha256": "6d0e2052677d19bda7cb1e9ffad7cecbce220681d5b2179904fe621f3c86024d",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0dc47d98ca08aa27edcd867b5a723a36700c629d125514a7c79224053cf3dad0",
      "rows": [
        {
          "name": "Reverse Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Forward Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (LM285 Series)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "LM285 series, per Absolute Maximum Ratings",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Susceptibility",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Human body model, 100 pF through 1.5 kΩ",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering, SOIC vapor phase",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 215,
          "conditions": "Vapor phase, 60 sec",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering, SOIC infrared",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 220,
          "conditions": "Infrared, 15 sec",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature, LM285 elevated operation",
          "symbol": "TJ(max)",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "Elevated temperature operation (Table 1)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient, SOIC",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 165,
          "max": null,
          "conditions": "Over operating free-air temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Average Temperature Coefficient, all others (not X or Y suffix)",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Footnote 4: max deviation from TMIN to TMAX divided by TMAX − TMIN",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "LM285MX (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
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  }
}