REF1933AIDDCR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ref1933aiddcr",
  "title": "REF1933AIDDCR",
  "brief": "Texas Instruments Voltage Reference, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ref1933aiddcr"
  ],
  "component": {
    "mpn": "REF1933AIDDCR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303011800_Texas-Instruments-REF1933AIDDCR_C2157197.pdf",
    "parts": {
      "symbol": "ref1933aiddcr.kicad_sym",
      "footprint": "ref1933aiddcr.kicad_mod",
      "model_3d": "ref1933aiddcr-etched.glb",
      "model_3d_plain": "ref1933aiddcr.glb",
      "model_3d_step": "ref1933aiddcr-etched.step",
      "model_3d_step_plain": "ref1933aiddcr.step",
      "lbr": "ref1933aiddcr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VBIAS",
        "type": "output",
        "description": "Bias voltage output equal to VREF/2 (1.65 V for REF1933). Used to bias bipolar signals into the midpoint of a single-supply ADC input range. Sources and sinks up to ±20 mA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return. All voltages are referenced to this pin."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input. Device is enabled when EN ≥ VIN − 0.7 V and placed in shutdown when EN ≤ 0.7 V. Shutdown current is typically 3.3 µA."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage. Recommended operating range VREF + 0.02 V to 5.5 V; absolute maximum 6 V. Dropout is 10 mV typical at IL = 0 mA."
      },
      {
        "number": "5",
        "name": "VREF",
        "type": "output",
        "description": "Reference voltage output (3.3 V for REF1933). ±0.1% initial accuracy, 25 ppm/°C max temperature coefficient. Sources and sinks up to ±20 mA; stable with 0-10 µF output capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303011800_Texas-Instruments-REF1933AIDDCR_C2157197.pdf",
        "pages": 32,
        "sha256": "193572512ed1817b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "variants": [
    {
      "mpn": "REF1933AIDDCR",
      "kind": "packaging"
    },
    {
      "mpn": "REF1933AIDDCT",
      "kind": "unknown"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ref1933aiddcr"
  ],
  "discovery_pitch": "REF1933AIDDCR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ref1933aiddcr.kicad_sym",
    "ref1933aiddcr.kicad_mod",
    "ref1933aiddcr.glb",
    "ref1933aiddcr.step",
    "ref1933aiddcr.lbr",
    "docs/hero.png",
    "docs/ref1933aiddcr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T04:43:41.180Z"
}