LR8103A-T12

{
  "schema_version": 1,
  "type": "component",
  "slug": "lr8103a-t12",
  "title": "LR8103A-T12",
  "brief": "LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "lr8103a-t12"
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  "component": {
    "mpn": "LR8103A-T12",
    "manufacturer": "LR",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2310081714_LR-LR8103A-T12_C7501644.pdf",
    "parts": {
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      "model_3d_step": "lr8103a-t12-etched.step",
      "model_3d_step_plain": "lr8103a-t12.step",
      "lbr": "lr8103a-t12.lbr"
    },
    "distributor_links": {
      "lcsc": "C7501644"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the regulator. Connect directly to the system ground plane. Return path for both quiescent current and load current."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated fixed output. For the T12 option this is 1.2 V nominal (±1% initial accuracy) with up to 300 mA continuous (450 mA absolute max). Requires an external ceramic output capacitor of at least 1 uF (1-10 uF recommended) close to the pin for stability."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply, 2.2 V to 6.5 V operating (absolute max 9 V). Requires an external ceramic bypass capacitor of at least 1 uF (1-10 uF recommended) placed close to the pin; a small (~10 Ω) series resistor is recommended to absorb upstream input spikes."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2310081714_LR-LR8103A-T12_C7501644.pdf",
        "pages": 14,
        "sha256": "82735f0d7eefd4a2",
        "source_tier": "lcsc"
      },
      "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": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-3@sha256:ab2ce7041629a2c0",
      "mark": "drawn"
    },
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        "seat": "z = 0",
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          3,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5e473a37f4b1b078c25bab54a1bdc272e728d827273225b4904276863acbda0d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "LR",
      "Package": "SOT-23-3L",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
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    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
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  "discovery_pitch": "LR8103A-T12 (LR) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "files": [
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    "README.md",
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    "lr8103a-t12.step",
    "lr8103a-t12-etched.step",
    "lr8103a-t12.lbr",
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    "viewers/symbol.html",
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  "visibility": {
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  },
  "variants": [
    {
      "mpn": "LR8103A-T12",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12B-T12",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12A-M18",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12A-M28",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12A-M30",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12A-M33",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12B-N18",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12B-N28",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12B-N30",
      "kind": "packaging"
    },
    {
      "mpn": "LR8103A-T12B-N33",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T18:07:32.635Z"
}