REF3112AIDBZR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ref3112aidbzr",
  "title": "REF3112AIDBZR",
  "brief": "Texas Instruments Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ref3112aidbzr"
  ],
  "component": {
    "mpn": "REF3112AIDBZR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ref3112aidbzr.pdf",
    "parts": {
      "symbol": "ref3112aidbzr.kicad_sym",
      "footprint": "ref3112aidbzr.kicad_mod",
      "model_3d": "ref3112aidbzr-etched.glb",
      "model_3d_plain": "ref3112aidbzr.glb",
      "model_3d_step": "ref3112aidbzr-etched.step",
      "model_3d_step_plain": "ref3112aidbzr.step",
      "lbr": "ref3112aidbzr.lbr"
    },
    "distributor_links": {
      "digikey": "296-39158-2-ND",
      "lcsc": "C74223"
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply voltage. Operating range VREF + 0.05 V to 5.5 V (minimum supply for REF3112 is 1.8 V). Absolute maximum supply V+ to V- is 7 V."
      },
      {
        "number": "2",
        "name": "OUT",
        "type": "output",
        "description": "Reference output voltage (1.25 V nominal for REF3112, initial accuracy ±0.2%). Can source or sink up to ±10 mA; no output capacitor required and stable with any capacitive load."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the reference. Quiescent current is 115 µA max."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ref3112aidbzr.pdf",
        "pages": 28,
        "sha256": "c8d0e0159b24942b",
        "source_tier": "mfr"
      },
      "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -0.9375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23@sha256:0d88c86c1b6d8c1a",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ref3112aidbzr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ref3112aidbzr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "12297e13b19da8b284332d7bcd710f081112f73fcf5ad1a75b1b1f8125cfe25e",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c8d0e0159b24942b",
      "rows": [
        {
          "name": "Output voltage (REF3112 row)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2475,
          "typ": 1.25,
          "max": 1.2525,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Initial accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.2,
          "typ": null,
          "max": 0.2,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature drift",
          "symbol": "dVOUT/dT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 5,
          "max": 15,
          "conditions": "TA = 0°C to 70°C.",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature drift",
          "symbol": "dVOUT/dT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "TA = –40°C to +125°C.",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "ppm/V",
          "min": null,
          "typ": 20,
          "max": 65,
          "conditions": "VREF + 0.05(1) ≤ VIN ≤ 5.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load regulation, sourcing",
          "symbol": "dVOUT/dILOAD",
          "kind": "electrical",
          "unit": "µV/mA",
          "min": null,
          "typ": 10,
          "max": 30,
          "conditions": "Sourcing 0mA < ILOAD < 10mA, VIN = VREF + 250mV(1)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load regulation, sinking",
          "symbol": "dVOUT/dILOAD",
          "kind": "electrical",
          "unit": "µV/mA",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "Sinking –10mA < ILOAD < 0mA, VIN = VREF + 100mV(1)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VIN – VOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 50,
          "conditions": "TA = –40°C to +125°C.",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "ILOAD",
          "kind": "electrical",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 100,
          "max": 115,
          "conditions": "ILOAD = 0, TA = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 115,
          "max": 135,
          "conditions": "ILOAD = 0, TA = –40°C to +125°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load current",
          "symbol": "ILOAD",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature (recommended)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, V+ to V–",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 135,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 292.9,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 124.4,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 89,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-top characterization parameter",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 11.4,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 87.6,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ref3112aidbzr"
  ],
  "discovery_pitch": "REF3112AIDBZR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ref3112aidbzr.kicad_sym",
    "ref3112aidbzr.kicad_mod",
    "ref3112aidbzr.glb",
    "ref3112aidbzr.step",
    "ref3112aidbzr-etched.step",
    "ref3112aidbzr.lbr",
    "docs/hero.png",
    "docs/ref3112aidbzr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "REF3112AIDBZR",
      "kind": "packaging"
    },
    {
      "mpn": "REF3112AIDBZT",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-25T04:45:28.025Z"
}