LM3489QMM

{
  "slug": "lm3489qmm",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Controllers, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm3489qmm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm3489qmm.kicad_sym",
    "lm3489qmm.kicad_mod",
    "lm3489qmm.glb",
    "lm3489qmm.step",
    "lm3489qmm.lbr",
    "docs/hero.png",
    "docs/lm3489qmm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm3489qmm-hero.glb",
    "lm3489qmm-hero.overlay.json",
    "lm3489qmm-etched.glb"
  ],
  "component": {
    "mpn": "LM3489QMM",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8-0.65mm",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm3489-q1",
    "parts": {
      "symbol": "lm3489qmm.kicad_sym",
      "footprint": "lm3489qmm.kicad_mod",
      "model_3d": "lm3489qmm-hero.glb",
      "model_3d_plain": "lm3489qmm-etched.glb",
      "model_3d_step": "lm3489qmm-etched.step",
      "model_3d_step_plain": "lm3489qmm.step",
      "lbr": "lm3489qmm.lbr"
    },
    "distributor_links": {
      "lcsc": "C2862414"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:58:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 793 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ISENSE",
        "type": "input",
        "description": "Current sense input that must be connected to the PFET drain terminal directly or through a series resistor up to 600 Ω for 28 V > VIN > 35 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Signal ground."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: connect to ground to shut down the part or float to enable operation (internally pulled high), and it can also be used for UVLO function."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input that connects to a resistor voltage divider between the output and GND for an adjustable output voltage."
      },
      {
        "number": "5",
        "name": "ADJ",
        "type": "input",
        "description": "Current limit threshold adjustment connected to an internal 5.5-µA current source, with a resistor to VIN whose voltage is compared with the ISENSE pin voltage to detect overcurrent."
      },
      {
        "number": "6",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "7",
        "name": "PGATE",
        "type": "output",
        "description": "Gate drive output for the external PFET, swinging between VIN and VIN minus 5 V."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input pin, with a recommended operating range of 4.5 V to 35 V."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet text gives the PGATE swing as 'VIN 5-V'. The minus sign was lost in extraction, so 'VI; The package hint says VSSOP-8-0.65mm, but the datasheet text does not state the pitch. The package i"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0788,
        "at": "2026-10-22T22:58:32"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm3489-q1",
        "pages": 28,
        "sha256": "8486c86e0ce9150d",
        "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": "lm3489qmm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2.0,
          0.85
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm3489qmm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2.0,
          0.85
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5edebe8cc0fba9405643a5796b1786813ec58dfe0a61a13701a41b7613937304",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}