LT1931AIS5#TRMPBF

{
  "slug": "lt1931ais5-trmpbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices DC-DC Converters, TSOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lt1931ais5#trmpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lt1931ais5-trmpbf.kicad_sym",
    "lt1931ais5-trmpbf.kicad_mod",
    "lt1931ais5-trmpbf.glb",
    "lt1931ais5-trmpbf.step",
    "lt1931ais5-trmpbf.lbr",
    "docs/hero.png",
    "docs/lt1931ais5-trmpbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lt1931ais5-trmpbf-hero.glb",
    "lt1931ais5-trmpbf-hero.overlay.json",
    "lt1931ais5-trmpbf-etched.glb"
  ],
  "component": {
    "mpn": "LT1931AIS5#TRMPBF",
    "manufacturer": "Analog Devices",
    "package": "TSOT-23-5",
    "pin_count": 5,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/1931fa.pdf",
    "parts": {
      "symbol": "lt1931ais5-trmpbf.kicad_sym",
      "footprint": "lt1931ais5-trmpbf.kicad_mod",
      "model_3d": "lt1931ais5-trmpbf-hero.glb",
      "model_3d_plain": "lt1931ais5-trmpbf-etched.glb",
      "model_3d_step": "lt1931ais5-trmpbf-etched.step",
      "model_3d_step_plain": "lt1931ais5-trmpbf.step",
      "lbr": "lt1931ais5-trmpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C579931",
      "digikey": "505-LT1931AIS5#TRMPBFTR-ND",
      "mouser": "584-LT1931AIS5TRMPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T18:03:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-LT1931AIS5#TRMPBFTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LT1931AIS5TRMPBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Switch pin: connect the inductor and catch diode here, and minimize the trace area at this pin to keep EMI down."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin: tie directly to the local ground plane."
      },
      {
        "number": "3",
        "name": "NFB",
        "type": "input",
        "description": "Feedback pin with a reference voltage of -1.255V: connect the resistive divider tap here and minimize trace area, since the NFB bias current flows out of the pin."
      },
      {
        "number": "4",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown pin: tie to 2.4V or more to enable the device and ground it to shut down."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin, which must be locally bypassed; the datasheet rates the operating voltage from 2.6V minimum to 16V maximum."
      }
    ],
    "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 gives the S5 TSOT-23 top view (pins 1 SW, 2 GND, 3 NFB, 4 SHDN, 5 VIN) and the pin fun; The datasheet has no pin-level type for SW. Its function is an inductor/diode switching node, so out"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0638,
        "at": "2026-10-30T18:03:36"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/1931fa.pdf",
        "pages": 12,
        "sha256": "86f1f10ba5e475b2",
        "source_tier": "mfr"
      },
      "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": "lt1931ais5-trmpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5120f0cee43ef7743cc08408d2c12f234fcac7355386e330a3a16f336e23da8d",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lt1931ais5-trmpbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          0.95
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "61bd9af4f2944f46819548caa55b116dfe881661f5483b5596f8bee49c184c8a",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "S5",
      "source_page": 11,
      "D": {
        "nom_mm": 2.9,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 2.8,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.95,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.0,
        "range_mm": [
          null,
          1.0
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "lt1931ais5-trmpbf.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}