LTL431ALT1G

{
  "schema_version": 1,
  "type": "component",
  "slug": "ltl431alt1g",
  "title": "LTL431ALT1G",
  "brief": "LRC Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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    "pmic",
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  "component": {
    "mpn": "LTL431ALT1G",
    "manufacturer": "LRC",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/07a35e61853e47e5b32d8a02f36d15a5.pdf",
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      "lbr": "ltl431alt1g.lbr"
    },
    "distributor_links": {
      "lcsc": "C83767"
    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (K) of the shunt reference. Sinks the regulation current; Vka may range from Vref (~2.5 V) up to 36 V max with cathode current 1 mA to 100 mA (absolute max -100 to +150 mA)."
      },
      {
        "number": "2",
        "name": "REF",
        "type": "input",
        "description": "Reference input (R). High-impedance sense input to the internal error amplifier; regulates when V(REF) = Vref (~2.495 V typ). Typical bias current 1.5 uA (max 4 uA)."
      },
      {
        "number": "3",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode (A) of the shunt reference. Common return terminal for cathode and reference currents; typically tied to circuit ground in shunt-regulator applications."
      }
    ],
    "provenance": {
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      "datasheet": {
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        "pages": 5,
        "sha256": "8d4aaa62f4bc7d35",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "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": [
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-07",
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "LRC",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8d4aaa62f4bc7d35",
      "rows": [
        {
          "name": "Reference input voltage (grade 0.5%, LTL431ALT1)",
          "symbol": "VREF",
          "kind": "tolerance",
          "unit": "V",
          "min": 2.487,
          "typ": null,
          "max": 2.512,
          "conditions": "VKA=VREF",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Off-state cathode current",
          "symbol": "IKA(OFF)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VKA=36V, VREF=0",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "LTL431ALT1G (LRC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
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  "variants": [
    {
      "mpn": "LTL431ALT1G",
      "kind": "packaging"
    },
    {
      "mpn": "LTL431BLT1G",
      "kind": "unknown"
    },
    {
      "mpn": "LTL431APLT1G",
      "kind": "unknown"
    },
    {
      "mpn": "LTL431BPLT1G",
      "kind": "unknown"
    },
    {
      "mpn": "LTL431ATLT1G",
      "kind": "unknown"
    },
    {
      "mpn": "LTL431BTLT1G",
      "kind": "unknown"
    },
    {
      "mpn": "LTL431APTLT1G",
      "kind": "unknown"
    },
    {
      "mpn": "LTL431BPTLT1G",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-28T18:16:24.525Z"
}