LM2831XMFX

{
  "slug": "lm2831xmfx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm2831xmfx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2831xmfx.kicad_sym",
    "lm2831xmfx.kicad_mod",
    "lm2831xmfx.glb",
    "lm2831xmfx.step",
    "lm2831xmfx.lbr",
    "docs/hero.png",
    "docs/lm2831xmfx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm2831xmfx-hero.glb",
    "lm2831xmfx-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM2831XMFX",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm2831",
    "parts": {
      "symbol": "lm2831xmfx.kicad_sym",
      "footprint": "lm2831xmfx.kicad_mod",
      "model_3d": "lm2831xmfx-hero.glb",
      "model_3d_plain": "lm2831xmfx.glb",
      "model_3d_step": "lm2831xmfx-etched.step",
      "model_3d_step_plain": "lm2831xmfx.step",
      "lbr": "lm2831xmfx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2072486",
      "digikey": "LM2831XMFX-ND",
      "mouser": "926-LM2831XMFX"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T08:57:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM2831XMFX-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM2831XMFX",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Output switch. Connect to the inductor and catch diode."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground pin. Place the bottom resistor of the feedback network as close as possible to this pin."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin. Connect to external resistor divider to set output voltage."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable control input. Logic high enables operation. Do not allow this pin to float or be greater than VIN + 0.3 V."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 9,
        "cost_usd": 0.0681,
        "at": "2026-10-07T08:56:51"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm2831",
        "pages": 39,
        "sha256": "02aa1f2beab12ad0",
        "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": "lm2831xmfx.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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2831xmfx-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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6343dc42d52c9144b20444b510f6b8f94385307fc7d4d87809a377aacce96284",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}