LTC1261LCMS8#TRPBF

{
  "slug": "ltc1261lcms8-trpbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices DC-DC Converters, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ltc1261lcms8#trpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ltc1261lcms8-trpbf.kicad_sym",
    "ltc1261lcms8-trpbf.kicad_mod",
    "ltc1261lcms8-trpbf.glb",
    "ltc1261lcms8-trpbf.step",
    "ltc1261lcms8-trpbf.lbr",
    "docs/hero.png",
    "docs/ltc1261lcms8-trpbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ltc1261lcms8-trpbf-hero.glb",
    "ltc1261lcms8-trpbf-hero.overlay.json",
    "ltc1261lcms8-trpbf-etched.glb"
  ],
  "component": {
    "mpn": "LTC1261LCMS8#TRPBF",
    "manufacturer": "Analog Devices",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589848779974750208",
    "parts": {
      "symbol": "ltc1261lcms8-trpbf.kicad_sym",
      "footprint": "ltc1261lcms8-trpbf.kicad_mod",
      "model_3d": "ltc1261lcms8-trpbf-hero.glb",
      "model_3d_plain": "ltc1261lcms8-trpbf-etched.glb",
      "model_3d_step": "ltc1261lcms8-trpbf-etched.step",
      "model_3d_step_plain": "ltc1261lcms8-trpbf.step",
      "lbr": "ltc1261lcms8-trpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C674850",
      "mouser": "584-C1261LCMS8TRPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T09:19:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": "584-C1261LCMS8TRPBF",
        "status": "found",
        "lifecycle": "Restricted Availability"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input requiring 2.7V to 5.25V, bypassed to ground with at least a 1µF capacitor placed close to the chip."
      },
      {
        "number": "2",
        "name": "C1+",
        "type": "passive",
        "description": "Positive terminal of the flying capacitor, which connects to a 0.1µF capacitor between C1+ and C1-."
      },
      {
        "number": "3",
        "name": "C1–",
        "type": "passive",
        "description": "Negative terminal of the flying capacitor, which connects to a 0.1µF capacitor between C1+ and C1-."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, which should connect to a low-impedance ground plane to minimize regulation errors."
      },
      {
        "number": "5",
        "name": "ADJ (COMP)",
        "type": "input",
        "description": "Output adjust pin for adjustable parts (resistor divider from OUT, drawing at least 10µA recommended) and compensation pin for fixed-output parts, where an optional capacitor to ground reduces output ripple."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "power_out",
        "description": "Negative voltage output that must be bypassed to ground with a 1µF or larger capacitor."
      },
      {
        "number": "7",
        "name": "REG",
        "type": "output",
        "description": "Open-drain output that pulls low when the output is within 5% of the set value, sinks 5mA with a 5V supply, requires an external pull-up, and may be pulled up to 6V above ground."
      },
      {
        "number": "8",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown input: at ground the part operates normally, while a high level disables the charge pump and drops quiescent current to 5µA typical, with an internal 5µA pull-down keeping it low when floating."
      }
    ],
    "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: Pin types for C1+ and C1– are not stated in the datasheet; they were assigned as passive because the; ADJ (COMP) is a dual-function pin (adjust for adjustable parts, compensation for fixed parts); it wa; The datasheet pin-function section gives pin numbers and functions but not an explicit pin type for "
        ],
        "pages_sent": 14,
        "cost_usd": 0.0818,
        "at": "2026-10-19T09:18:54"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589848779974750208",
        "pages": 14,
        "sha256": "336624392408a8a5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ltc1261lcms8-trpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ltc1261lcms8-trpbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2c06064a715fbb9795c4058b27ba3c3135687d56f54ad0708039010d98fe4c5c",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}