LM4132 Precision Voltage Reference

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm4132",
  "title": "LM4132 Precision Voltage Reference",
  "brief": "Precision series (3-terminal) voltage reference with 0.05% accuracy and low drift.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "voltage-reference",
    "series",
    "precision",
    "low-drift",
    "ti",
    "sot-23-5"
  ],
  "component": {
    "mpn": "LM4132",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Analog",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm4132.pdf",
    "parts": {
      "symbol": "lm4132.kicad_sym",
      "footprint": "lm4132.kicad_mod",
      "model_3d": "lm4132-etched.glb",
      "model_3d_plain": "lm4132.glb",
      "model_3d_step": "lm4132-etched.step",
      "model_3d_step_plain": "lm4132.step",
      "lbr": "lm4132.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connect pin, leave floating."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable pin. VIH ≥ 65% of VIN enables the reference; VIL ≤ 35% of VIN puts the device in shutdown (IQ_SD ≈ 3 µA typ)."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply. Operating range from VREF + 400 mV up to 5.5 V (absolute max 6 V). CIN required for stability."
      },
      {
        "number": "5",
        "name": "VREF",
        "type": "power_out",
        "description": "Precision reference output. Factory-set to 1.8, 2.048, 2.5, 3, 3.3, or 4.096 V depending on grade. Sources up to 20 mA (25 mA for LM4132-3.3-Q1); COUT optional, stable with low-ESR ceramics."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm4132.pdf",
        "pages": 44,
        "sha256": "4bd8402ff026fdf1",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "lm4132.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4132-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9435af3c7584315ea3c524f1193dbdff8bf9c24c293049036126dd8370762a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Series (3-terminal) voltage reference",
      "Initial accuracy": "0.05% (A grade)",
      "Temperature coefficient": "10 ppm/C max",
      "Output grades": "1.8 / 2.048 / 2.5 / 3.0 / 3.3 / 4.096 V",
      "Supply current": "60 uA typ",
      "Supply voltage": "Vout + 0.4 V to 5.5 V",
      "Operating temperature": "-40 C to 125 C"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "voltage reference",
    "ADC reference",
    "precision reference",
    "series reference"
  ],
  "discovery_pitch": "A precision series voltage reference with 0.05% accuracy and low temperature drift for ADC and DAC references.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4132.kicad_sym",
    "lm4132.kicad_mod",
    "lm4132.glb",
    "lm4132.step",
    "lm4132.lbr",
    "docs/hero.png",
    "docs/lm4132-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4132-etched.step"
  ],
  "variants": [
    {
      "mpn": "LM4132DBV",
      "kind": "unknown"
    }
  ]
}