LP2981A-28DBVR

{
  "schema_version": 1,
  "type": "component",
  "slug": "lp2981a-28dbvr",
  "title": "LP2981A-28DBVR",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
    "lp2981a-28dbvr",
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  "component": {
    "mpn": "LP2981A-28DBVR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lp2981a",
    "parts": {
      "symbol": "lp2981a-28dbvr.kicad_sym",
      "footprint": "lp2981a-28dbvr.kicad_mod",
      "model_3d": "lp2981a-28dbvr-etched.glb",
      "model_3d_plain": "lp2981a-28dbvr.glb",
      "model_3d_step": "lp2981a-28dbvr-etched.step",
      "model_3d_step_plain": "lp2981a-28dbvr.step",
      "lbr": "lp2981a-28dbvr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2877807",
      "digikey": "296-18473-2-ND",
      "mouser": "595-LP2981A-28DBVR"
    },
    "distributor_check": {
      "checked_at": "2026-09-27T00:22:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-18473-2-ND",
        "status": "found",
        "lifecycle": "Obsolete"
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      "mouser": {
        "pn": "595-LP2981A-28DBVR",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply pin; use a capacitor with a value of 1µF or larger from this pin to ground."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground (device substrate)."
      },
      {
        "number": "3",
        "name": "ON/OFF",
        "type": "input",
        "description": "Enable pin for the LDO; driving high enables the device, driving low disables it; tie to VIN if unused."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "Do not connect; pin 4 is not internally connected on the new chip."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "power_out",
        "description": "Output of the regulator; use a capacitor with a value of 2.2µF or larger from this pin to ground."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 35,
        "cost_usd": 0.3135,
        "at": "2026-09-27T00:22:19"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lp2981a",
        "pages": 35,
        "sha256": "f9a14a5370d16829",
        "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": "Power Management (PMIC)",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
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  "discovery_triggers": [
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  "discovery_pitch": "LP2981A-28DBVR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "README.md",
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    "lp2981a-28dbvr.glb",
    "lp2981a-28dbvr.step",
    "lp2981a-28dbvr.lbr",
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    "docs/lp2981a-28dbvr-datasheet.pdf",
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  "visibility": {
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}