L4931CDT50-TR

{
  "slug": "l4931cdt50-tr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DPAK. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "l4931cdt50-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l4931cdt50-tr.kicad_sym",
    "l4931cdt50-tr.kicad_mod",
    "l4931cdt50-tr.glb",
    "l4931cdt50-tr.step",
    "l4931cdt50-tr.lbr",
    "docs/hero.png",
    "docs/l4931cdt50-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l4931cdt50-tr-hero.glb",
    "l4931cdt50-tr-hero.overlay.json"
  ],
  "component": {
    "mpn": "L4931CDT50-TR",
    "manufacturer": "STMicroelectronics",
    "package": "DPAK",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454688664481792",
    "parts": {
      "symbol": "l4931cdt50-tr.kicad_sym",
      "footprint": "l4931cdt50-tr.kicad_mod",
      "model_3d": "l4931cdt50-tr-hero.glb",
      "model_3d_plain": "l4931cdt50-tr.glb",
      "model_3d_step": "l4931cdt50-tr-etched.step",
      "model_3d_step_plain": "l4931cdt50-tr.step",
      "lbr": "l4931cdt50-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C5267997",
      "digikey": "497-4204-2-ND",
      "mouser": "511-L4931CDT50-TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T23:42:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-4204-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-L4931CDT50-TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Regulator input voltage pin; operating input voltage up to 20 V (absolute maximum 20 V), with a 0.1 µF input capacitor used in the test circuit."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, shown in the DPAK drawing as the middle stub connected to the tab (GND)."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated 5 V output (L4931CDT50-TR) delivering up to 250 mA, requiring a 2.2 µF to 10 µF output capacitor with ESR of 0.1 to 10 Ω for stability."
      }
    ],
    "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 DPAK drawing in Figure 2 (page 4) gives only function labels (OUTPUT on the top lead, INPUT on t; The DPAK has no inhibit pin. The datasheet says the shutdown function is available only in the PPAK ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 32,
        "cost_usd": 0.4059,
        "at": "2026-10-07T23:42:18"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454688664481792",
        "pages": 32,
        "sha256": "42bf56a6e95ed577",
        "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": "l4931cdt50-tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l4931cdt50-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "222c7e6b05db76b3cdc66f52770b3057004f7804c5d6cec6ca8d724878ea19e3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}