LT8618EDDB#TRPBF

{
  "slug": "lt8618eddb-trpbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices DC-DC Converters, DFN-10(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lt8618eddb#trpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lt8618eddb-trpbf.kicad_sym",
    "lt8618eddb-trpbf.kicad_mod",
    "lt8618eddb-trpbf.glb",
    "lt8618eddb-trpbf.step",
    "lt8618eddb-trpbf.lbr",
    "docs/hero.png",
    "docs/lt8618eddb-trpbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lt8618eddb-trpbf-hero.glb",
    "lt8618eddb-trpbf-hero.overlay.json",
    "lt8618eddb-trpbf-etched.glb"
  ],
  "component": {
    "mpn": "LT8618EDDB#TRPBF",
    "manufacturer": "Analog Devices",
    "package": "DFN-10(2x3)",
    "pin_count": 11,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt8618-8618-3_3.pdf",
    "parts": {
      "symbol": "lt8618eddb-trpbf.kicad_sym",
      "footprint": "lt8618eddb-trpbf.kicad_mod",
      "model_3d": "lt8618eddb-trpbf-hero.glb",
      "model_3d_plain": "lt8618eddb-trpbf-etched.glb",
      "model_3d_step": "lt8618eddb-trpbf-etched.step",
      "model_3d_step_plain": "lt8618eddb-trpbf.step",
      "lbr": "lt8618eddb-trpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C3187547",
      "digikey": "505-LT8618EDDB#TRPBFTR-ND",
      "mouser": "584-LT8618EDDB#TRPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T22:44:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-LT8618EDDB#TRPBFTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LT8618EDDB#TRPBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "power_out",
        "description": "Supplies a drive voltage higher than VIN to the topside power switch; place a 47nF boost capacitor as close as possible to the IC and do not put resistance in series with this pin."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "power_out",
        "description": "Output of the internal power switches that connects to the inductor, and this node should be kept small on the PCB for good performance."
      },
      {
        "number": "3",
        "name": "BIAS",
        "type": "input",
        "description": "The internal regulator draws current from BIAS instead of VIN when BIAS is above 3.2V; for outputs of 3.3V to 25V it should be tied to VOUT, a 1µF bypass is needed if another supply is used, and it should be tied to GND if no supply is available."
      },
      {
        "number": "4",
        "name": "INTVCC",
        "type": "power_out",
        "description": "Internal 3.4V regulator bypass pin with a maximum output current of 2mA that must not be loaded externally, and it needs at least 1µF of low-ESR ceramic decoupling placed close to the IC."
      },
      {
        "number": "5",
        "name": "RT",
        "type": "passive",
        "description": "A resistor between RT and ground sets the switching frequency."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "For the LT8618 this is the feedback input where the feedback resistor divider tap connects, and the part regulates FB to 0.778V."
      },
      {
        "number": "7",
        "name": "TR/SS",
        "type": "bidirectional",
        "description": "Output tracking and soft-start pin where a voltage below 0.778V makes FB follow TR/SS, an internal 2µA pull-up sets the output ramp with a capacitor, and a 300Ω pull-down is active during shutdown and fault so a series resistor is needed if driven from a low-impedance output."
      },
      {
        "number": "8",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power-good output that stays low until FB is within ±7.5% of the regulation voltage with no fault conditions, and it is valid when VIN is above 3.4V regardless of EN/UV state."
      },
      {
        "number": "9",
        "name": "EN/UV",
        "type": "input",
        "description": "The part is shut down when this pin is low and active when high, with a hysteretic threshold of 1.05V rising and 1.00V falling; tie it to VIN if shutdown is not used, and an external resistor divider from VIN can set a UVLO threshold."
      },
      {
        "number": "10",
        "name": "VIN",
        "type": "power_in",
        "description": "Supplies the internal circuitry and top-side power switch and must be locally bypassed with the input capacitor's positive terminal as close as possible to VIN, rated 3.4V to 60V operating (65V maximum for transients)."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed pad ground that must be connected to the negative terminal of the input capacitor and soldered to the PCB to lower the thermal resistance."
      }
    ],
    "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 MPN LT8618EDDB#TRPBF is the LT8618 (adjustable, FB) version in the 10-lead DDB DFN. Pin 6 is FB ; The page 2 pin-configuration drawing text is scrambled in extraction, so the number-to-name mapping ; The schema has no separate spec field, so the headline ratings mentioned in pin descriptions (VIN 3."
        ],
        "pages_sent": 12,
        "cost_usd": 0.0857,
        "at": "2026-10-28T22:44:23"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt8618-8618-3_3.pdf",
        "pages": 29,
        "sha256": "4bd6ffbba1021846",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lt8618eddb-trpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          2.98,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f32bf7ac72cd74fd3cd2ce5cc9cea9c0b978a57d74a28ba263b71c7e8b9d294b",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lt8618eddb-trpbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.0,
          2.98,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b67ba92deecded6085fcef512d47f1af2e27f587d335bdb753559b8b21921c6",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "DDB10",
      "source_page": 25,
      "D": {
        "nom_mm": 3.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 2.0,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.75,
        "range_mm": [
          null,
          null
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "lt8618eddb-trpbf.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}