LP3871EMPX-3.3

{
  "schema_version": 1,
  "type": "component",
  "slug": "lp3871empx-3-3",
  "title": "LP3871EMPX-3.3",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lp3871empx-3.3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LP3871EMPX-3.3",
    "manufacturer": "Texas Instruments",
    "package": "SOT-223-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lp3874",
    "parts": {
      "symbol": "lp3871empx-3-3.kicad_sym",
      "footprint": "lp3871empx-3-3.kicad_mod",
      "model_3d": "lp3871empx-3-3-hero.glb",
      "model_3d_plain": "lp3871empx-3-3.glb",
      "model_3d_step": "lp3871empx-3-3-etched.step",
      "model_3d_step_plain": "lp3871empx-3-3.step",
      "lbr": "lp3871empx-3-3.lbr"
    },
    "distributor_links": {
      "lcsc": "C2861020",
      "digikey": "LP3871EMPX-3.3-ND",
      "mouser": "926-LP3871EMPX-33"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:10:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LP3871EMPX-3.3-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LP3871EMPX-33",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SD",
        "type": "input",
        "description": "Shutdown input: must be pulled high through a 10-kΩ pullup resistor for normal operation, and pulling it low puts the regulator in shutdown with about 10-nA quiescent current; shutdown input voltage is rated −0.3 V to 7 V."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply voltage: 2.5 V to 7 V recommended, with a minimum of VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output voltage (3.3 V nominal for this variant), rated for a maximum DC output current of 0.8 A."
      },
      {
        "number": "4",
        "name": "ERROR",
        "type": "output",
        "description": "ERROR flag output that goes low when the output voltage drops 10% below nominal; it must be pulled high through a 10-kΩ pullup resistor, or connected to ground if unused, and its maximum voltage is VIN."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet labels IN as 'I' and OUT as 'O'; I mapped them to KiCad power_in and power_out because; The pin-number mapping comes from the Pin Functions table on page 3 (LP3871 SOT-223 column), since t; ERROR is a flag output on this package (LP3871 SOT-223 column = pin 4). The datasheet does not state"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0645,
        "at": "2026-10-08T23:09:04"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lp3874",
        "pages": 27,
        "sha256": "b85de2cb47e9b1e2",
        "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"
    },
    "models_3d": [
      {
        "file": "lp3871empx-3-3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.46,
          6.7,
          1.45
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c6aeaa590eb65e9aaf6227e06953791525224aded6daaecd6435d7f9d5ab3605",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp3871empx-3-3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.46,
          6.7,
          1.45
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0b3a8fd984137a3816a7e6625719b11a44309fcd967251a76278c50e853b3d6c",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-223-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lp3871empx-3.3"
  ],
  "discovery_pitch": "LP3871EMPX-3.3 (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"
  },
  "files": [
    "page.json",
    "README.md",
    "lp3871empx-3-3.kicad_sym",
    "lp3871empx-3-3.kicad_mod",
    "lp3871empx-3-3.glb",
    "lp3871empx-3-3.step",
    "lp3871empx-3-3.lbr",
    "docs/hero.png",
    "docs/lp3871empx-3-3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lp3871empx-3-3-hero.glb",
    "lp3871empx-3-3-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}