LP3879MRX-1.0

{
  "schema_version": 1,
  "type": "component",
  "slug": "lp3879mrx-1-0",
  "title": "LP3879MRX-1.0",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8-EP. 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)",
    "lp3879mrx-1.0",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LP3879MRX-1.0",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lp3879",
    "parts": {
      "symbol": "lp3879mrx-1-0.kicad_sym",
      "footprint": "lp3879mrx-1-0.kicad_mod",
      "model_3d": "lp3879mrx-1-0-hero.glb",
      "model_3d_plain": "lp3879mrx-1-0.glb",
      "model_3d_step": "lp3879mrx-1-0-etched.step",
      "model_3d_step_plain": "lp3879mrx-1-0.step",
      "lbr": "lp3879mrx-1-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C2873360",
      "digikey": "LP3879MRX-1.0-ND",
      "mouser": "926-LP3879MRX-10"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T19:58:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LP3879MRX-1.0-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LP3879MRX-10",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BYPASS",
        "type": "passive",
        "description": "The capacitor connected between BYPASS and GROUND lowers output noise voltage and is required for loop stability."
      },
      {
        "number": "2",
        "name": "N/C",
        "type": "unconnected",
        "description": "DO NOT CONNECT; this pin is used for post package test and must be left floating."
      },
      {
        "number": "3",
        "name": "GROUND",
        "type": "power_in",
        "description": "Device ground."
      },
      {
        "number": "4",
        "name": "INPUT",
        "type": "power_in",
        "description": "Input source voltage."
      },
      {
        "number": "5",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated output voltage."
      },
      {
        "number": "6",
        "name": "SENSE",
        "type": "input",
        "description": "Remote sense; tie directly to output or remotely at point of load for best regulation."
      },
      {
        "number": "7",
        "name": "N/C",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "8",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Output is enabled above the turn-on threshold voltage; pull down to turn off the regulator output."
      },
      {
        "number": "9",
        "name": "SUBSTRATE",
        "type": "power_in",
        "description": "The exposed die attach pad should be connected to a thermal pad at ground potential."
      }
    ],
    "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 pin table on page 2 lists only pins 1-8 and describes the exposed pad as 'SO PowerPad, SUBSTRATE; The pin table on page 2 is shared by the SO PowerPad and WSON packages, and the numbering is identic; Pins 2 and 7 are both N/C. Pin 2 must be left floating (post-package test), and pin 7 has no interna",
          "1/9 pins cited to the wrong page (name found elsewhere): ['9:EXPOSED PAD (SUBSTRATE / GROUND)@p2']"
        ],
        "pages_sent": 23,
        "cost_usd": 0.0788,
        "at": "2026-10-10T19:58:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lp3879",
        "pages": 23,
        "sha256": "b437c2e749f1337e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lp3879mrx-1-0.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp3879mrx-1-0-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "69bd5fd5326f96c966427e01f25ccd02cee80e6aa7aac1ab635a69c758a77d44",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lp3879mrx-1.0"
  ],
  "discovery_pitch": "LP3879MRX-1.0 (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": [
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    "README.md",
    "lp3879mrx-1-0.kicad_sym",
    "lp3879mrx-1-0.kicad_mod",
    "lp3879mrx-1-0.glb",
    "lp3879mrx-1-0.step",
    "lp3879mrx-1-0.lbr",
    "docs/hero.png",
    "docs/lp3879mrx-1-0-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lp3879mrx-1-0-hero.glb",
    "lp3879mrx-1-0-hero.overlay.json"
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  "visibility": {
    "public": true
  }
}