LM109H

{
  "slug": "lm109h",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm109h",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm109h.kicad_sym",
    "lm109h.kicad_mod",
    "lm109h.glb",
    "lm109h.step",
    "lm109h.lbr",
    "docs/hero.png",
    "docs/lm109h-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "LM109H",
    "manufacturer": "Texas Instruments",
    "package": "TO-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm109",
    "parts": {
      "symbol": "lm109h.kicad_sym",
      "footprint": "lm109h.kicad_mod",
      "model_3d": "lm109h-etched.glb",
      "model_3d_plain": "lm109h.glb",
      "model_3d_step": "lm109h-etched.step",
      "model_3d_step_plain": "lm109h.step",
      "lbr": "lm109h.lbr"
    },
    "distributor_links": {
      "lcsc": "C2877262",
      "digikey": "296-41156-ND",
      "mouser": "926-LM109H"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:36:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-41156-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "926-LM109H",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated input voltage, absolute maximum 35V, operating 7.40V to 25V, bypass with at least 0.2 µF to ground if the main filter capacitor is more than 4 inches away."
      },
      {
        "number": "2",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated 5V output (4.7V to 5.3V for LM109 at Tj = 25°C) delivering more than 200 mA for the TO-39 package (IMAX = 0.2A), with no output capacitor required for stability."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, electrically connected to the case."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The package hint says TO-3, but LM109H is sold in the 3-pin TO-39 metal can (TI NDT, NS H03A). The T; The datasheet does not state pin types. They were inferred from the labels INPUT, OUTPUT and GND (CA",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 13,
        "cost_usd": 0.3026,
        "at": "2026-10-08T23:35:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm109",
        "pages": 13,
        "sha256": "4411b11c07ed19a1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm109h.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          40.2,
          27.2,
          19.0
        ],
        "zmin_mm": -10.0,
        "centre_offset_mm": 0.01,
        "footprint_binding": "identity",
        "sha256": "10d36da80a7f328482e27916f3044cc4bfec83922e402c41ed3552aa777116bb",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm109h-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          40.2,
          27.2,
          19.0
        ],
        "zmin_mm": -10.0,
        "centre_offset_mm": 0.01,
        "footprint_binding": "identity",
        "sha256": "60127fa2efb21189320fb5ed5e4572f8c3d928bbfa91da44f8842e4cfaa2d08b",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}