main
Ray Set visibility: public fd80b59 12d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm285byz",
  "title": "LM285BYZ",
  "brief": "Texas Instruments Voltage Reference, TO-92-3. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lm285byz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM285BYZ",
    "manufacturer": "Texas Instruments",
    "package": "TO-92-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm385-adj",
    "parts": {
      "symbol": "lm285byz.kicad_sym",
      "footprint": "lm285byz.kicad_mod",
      "model_3d": "lm285byz-hero.glb",
      "model_3d_plain": "lm285byz-etched.glb",
      "model_3d_step": "lm285byz-etched.step",
      "model_3d_step_plain": "lm285byz.step",
      "lbr": "lm285byz.lbr"
    },
    "distributor_links": {
      "lcsc": "C1575620"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T17:37:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "-",
        "type": "power_in",
        "description": "Anode (negative) terminal of the shunt reference, the ground return, with reverse current of 10µA to 20mA operating and 30mA absolute maximum."
      },
      {
        "number": "2",
        "name": "+",
        "type": "passive",
        "description": "Positive (cathode) terminal of the shunt reference that sets VOUT adjustable from 1.24V to 5.30V, with 30mA maximum reverse current."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input that sets the output voltage via an external divider, with feedback current of 13nA typical for the LM285BY."
      }
    ],
    "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": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm285byz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm285byz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "cda7bbd8d0183fb22349fc3e6f85f2c9cf158b7cea77a5d1410f4d0827f39576",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TO-92-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0dc47d98ca08aa27edcd867b5a723a36700c629d125514a7c79224053cf3dad0",
      "rows": [
        {
          "name": "Reference Voltage (tested limits, BY grade)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.215,
          "typ": 1.24,
          "max": 1.265,
          "conditions": "IR = 100μA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage Change with Current (tested, BY)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "IMIN < IR < 1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage Change with Current (tested, BY)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "1mA < IR < 20mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Voltage Change with Output Voltage (tested, BY)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "IR = 100μA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Operating Current (tested, BY)",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 9,
          "conditions": "VOUT = VREF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Operating Current (tested, BY)",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "VOUT = 5.3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Current (tested, BY)",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Average Temperature Coefficient (Y suffix)",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°c",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Y Suffix; TMIN to TMAX per note (4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Output Impedance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.3,
          "max": 0.4,
          "conditions": "IR = 100μA, f = 100Hz, IAC = 0.1 IR, VOUT = VREF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Output Impedance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.7,
          "max": 1,
          "conditions": "IR = 100μA, f = 100Hz, IAC = 0.1 IR, VOUT = 5.3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "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": "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 Temperature (TO-92 package)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "TO-92 package, 10 sec.",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (LM285 Series)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "LM285 Series",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "μA",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "Features: operating current range",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Current",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Features: operating current range",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Adjustable Output Voltage Range",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.24,
          "typ": null,
          "max": 5.3,
          "conditions": "Features: adjustable range",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature (LM285, elevated temperature operation)",
          "symbol": "TJ(max)",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "Table 1, elevated temperature operation",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient (TO-92, 0.4in leads)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 180,
          "max": null,
          "conditions": "0.4in leads",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient (TO-92, 0.125in leads)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "0.125in leads",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm285byz"
  ],
  "discovery_pitch": "LM285BYZ (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm285byz.kicad_sym",
    "lm285byz.kicad_mod",
    "lm285byz.glb",
    "lm285byz.step",
    "lm285byz.lbr",
    "docs/hero.png",
    "docs/lm285byz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm285byz-hero.glb",
    "lm285byz-hero.overlay.json",
    "lm285byz-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}