LP2981A-50DBVR

{
  "slug": "lp2981a-50dbvr",
  "version": "0.2.1",
  "type": "component",
  "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "pmic",
    "lp2981a-50dbvr"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lp2981a-50dbvr.kicad_sym",
    "lp2981a-50dbvr.kicad_mod",
    "lp2981a-50dbvr.glb",
    "lp2981a-50dbvr.step",
    "lp2981a-50dbvr-etched.step",
    "lp2981a-50dbvr.lbr",
    "docs/hero.png",
    "docs/lp2981a-50dbvr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
    "lp2981a-50dbvr-etched.glb",
    "lp2981a-50dbvr-hero.glb",
    "lp2981a-50dbvr-hero.overlay.json"
  ],
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": 16,
          "conditions": "Minimum VIN of 2.2 V needed for proper biasing of LDO control circuitry",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "component": {
    "mpn": "LP2981A-50DBVR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303010630_Texas-Instruments-LP2981A-50DBVR_C2865539.pdf",
    "parts": {
      "symbol": "lp2981a-50dbvr.kicad_sym",
      "footprint": "lp2981a-50dbvr.kicad_mod",
      "model_3d": "lp2981a-50dbvr-hero.glb",
      "model_3d_plain": "lp2981a-50dbvr.glb",
      "model_3d_step": "lp2981a-50dbvr-etched.step",
      "model_3d_step_plain": "lp2981a-50dbvr.step",
      "lbr": "lp2981a-50dbvr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865539"
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input. Recommended operating range 2.2 V to 16 V (absolute max 16 V). A ≥1 µF input capacitor is recommended."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference. Ground pin current is typically 200 µA at 25 mA load and 600 µA at 100 mA load."
      },
      {
        "number": "3",
        "name": "ON/OFF",
        "type": "input",
        "description": "Active-low shutdown control input. Drive high (>1.6 V) to enable the regulator; drive low (<0.15 V) to shut down (IQ ≈ 0.01 µA). Must be actively terminated; tie to VIN if unused. Absolute max 16 V."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating or tie to ground; no internal connection."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 5.0-V output, 100 mA continuous (short-circuit protected, ~150 mA current limit). Requires a 4.7 µF output capacitor for stability."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2303010630_Texas-Instruments-LP2981A-50DBVR_C2865539.pdf",
        "pages": 23,
        "sha256": "ad245dedca86e10b",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "lp2981a-50dbvr.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": "lp2981a-50dbvr-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": "b4ef4823f4369a4a2278b7c84f17a19ec36bb09e7b1168046bdc370d62f74ed3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "title": "LP2981A-50DBVR",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "discovery_triggers": [
    "lp2981a-50dbvr"
  ],
  "discovery_pitch": "LP2981A-50DBVR (Texas Instruments) component page with datasheet-verified CAD.",
  "visibility": "public"
}