LM2676SX-5.0

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2676sx-5-0",
  "title": "LM2676SX-5.0",
  "brief": "Texas Instruments DC-DC Converters, TO-263-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lm2676sx-5.0",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM2676SX-5.0",
    "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/lm2676",
    "parts": {
      "symbol": "lm2676sx-5-0.kicad_sym",
      "footprint": "lm2676sx-5-0.kicad_mod",
      "model_3d": "lm2676sx-5-0-etched.glb",
      "model_3d_plain": "lm2676sx-5-0.glb",
      "model_3d_step": "lm2676sx-5-0-etched.step",
      "model_3d_step_plain": "lm2676sx-5-0.step",
      "lbr": "lm2676sx-5-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C24710"
    },
    "pins": [
      {
        "number": "1",
        "name": "Switch_output",
        "type": "output",
        "description": "Source pin of internal high-side FET; switching node connecting inductor and external diode cathode, with voltage switching between VIN and ground potential minus diode forward voltage."
      },
      {
        "number": "2",
        "name": "Input",
        "type": "power_in",
        "description": "Power supply input for high-side FET collector; connect to input voltage source and input bypass capacitor CIN with minimal impedance path to ground for optimal performance."
      },
      {
        "number": "3",
        "name": "CB",
        "type": "output",
        "description": "Bootstrap capacitor connection for high-side gate driver; connect 100nF quality capacitor between this pin and VSW (pin 1) to generate gate drive voltage above VIN for full MOSFET conduction."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground reference pin for all circuit elements; connect to system ground and ground pins of CIN and COUT with minimum loop inductance."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection pin."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback detection input for two-stage high-gain PWM control amplifier; connect directly to output capacitor for fixed-voltage versions or to feedback divider midpoint for adjustable versions to set output voltage."
      },
      {
        "number": "7",
        "name": "ON/OFF",
        "type": "input",
        "description": "Voltage regulator enable input with 1.4V threshold and internal 20µA pullup source; high level enables operation, low level (≤0.8V) disables with 50µA standby current, maximum 6V above ground."
      },
      {
        "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": 40,
        "cost_usd": 0.4746,
        "at": "2026-09-23T11:06:18"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm2676",
        "pages": 40,
        "sha256": "e66be2b2a64d67e2",
        "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": "lm2676sx-5-0.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": "lm2676sx-5-0-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1563b30abc66974059e735b14bb65310eb616e5d1d74434308187577b667165e",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TO-263-7",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2676sx-5.0"
  ],
  "discovery_pitch": "LM2676SX-5.0 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "lm2676sx-5-0.kicad_sym",
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    "lm2676sx-5-0.glb",
    "lm2676sx-5-0.step",
    "lm2676sx-5-0.lbr",
    "docs/hero.png",
    "docs/lm2676sx-5-0-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-28T16:19:38.068Z"
}