LM2673SX-ADJ

{
  "slug": "lm2673sx-adj",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, TO-263-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm2673sx-adj",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2673sx-adj.kicad_sym",
    "lm2673sx-adj.kicad_mod",
    "lm2673sx-adj.glb",
    "lm2673sx-adj.step",
    "lm2673sx-adj.lbr",
    "docs/hero.png",
    "docs/lm2673sx-adj-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "LM2673SX-ADJ",
    "manufacturer": "Texas Instruments",
    "package": "TO-263-7",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm2673",
    "parts": {
      "symbol": "lm2673sx-adj.kicad_sym",
      "footprint": "lm2673sx-adj.kicad_mod",
      "model_3d": "lm2673sx-adj-etched.glb",
      "model_3d_plain": "lm2673sx-adj.glb",
      "model_3d_step": "lm2673sx-adj-etched.step",
      "model_3d_step_plain": "lm2673sx-adj.step",
      "lbr": "lm2673sx-adj.lbr"
    },
    "distributor_links": {
      "lcsc": "C2877273"
    },
    "pins": [
      {
        "number": "1",
        "name": "Switch output",
        "type": "output",
        "description": "Source pin of the internal High Side FET and switching node; attach to an inductor and the cathode of the external diode."
      },
      {
        "number": "2",
        "name": "Input",
        "type": "power_in",
        "description": "Supply input pin to collector pin of high side FET; connect to power supply and input bypass capacitors CIN with path to ground as short as possible."
      },
      {
        "number": "3",
        "name": "CB",
        "type": "input",
        "description": "Bootstrap capacitor connection for high-side driver; connect a high quality 100-nF capacitor from CB to Switch output pin."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground pin; connect to system ground and ground pins of CIN and COUT with path to CIN as short as possible."
      },
      {
        "number": "5",
        "name": "Current adjust",
        "type": "input",
        "description": "Current Limit adjust pin; connect a resistor from this pin to ground to set the current limit per ICL equals 37,125 divided by RADJ in amperes."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback sense input pin; connect to the midpoint of feedback divider to set VOUT for adjustable version or directly to output capacitor for fixed versions."
      },
      {
        "number": "7",
        "name": "SS",
        "type": "input",
        "description": "Soft-start pin; connect a capacitor from this pin to ground to control output voltage ramp, or leave floating if soft-start feature is not desired."
      },
      {
        "number": "8",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 8 added from the footprint"
        ],
        "pages_sent": 38,
        "cost_usd": 0.3957,
        "at": "2026-09-24T00:35:38"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm2673",
        "pages": 38,
        "sha256": "0d2838b8538afc10",
        "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": "lm2673sx-adj.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.0,
          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "34b8121b216e7b6490402befe573a69b06919acafd33d6e8da88bd238574da52",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2673sx-adj-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.0,
          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a5ac0048ff54acbda9663bccc969f5d511704903cd21b0b68d42093b8ec4993b",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}