LM2670SX-5.0

{
  "slug": "lm2670sx-5-0",
  "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)",
    "lm2670sx-5.0",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2670sx-5-0.kicad_sym",
    "lm2670sx-5-0.kicad_mod",
    "lm2670sx-5-0.glb",
    "lm2670sx-5-0.step",
    "lm2670sx-5-0.lbr",
    "docs/hero.png",
    "docs/lm2670sx-5-0-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm2670sx-5-0-hero.glb",
    "lm2670sx-5-0-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM2670SX-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/lm2670",
    "parts": {
      "symbol": "lm2670sx-5-0.kicad_sym",
      "footprint": "lm2670sx-5-0.kicad_mod",
      "model_3d": "lm2670sx-5-0-hero.glb",
      "model_3d_plain": "lm2670sx-5-0.glb",
      "model_3d_step": "lm2670sx-5-0-etched.step",
      "model_3d_step_plain": "lm2670sx-5-0.step",
      "lbr": "lm2670sx-5-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C2861407",
      "digikey": "LM2670SX-5.0TR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T08:16:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM2670SX-5.0TR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": null,
        "status": "error"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Switch_output",
        "type": "output",
        "description": "Source of the internal high-side FET and the switching node; connect it to the inductor and to the cathode of the external Schottky catch diode, and the pin must not be driven more than 1V below ground."
      },
      {
        "number": "2",
        "name": "Input",
        "type": "input",
        "description": "Power input that feeds the high-side FET and biases the internal circuits; it must be kept within 8V to 40V and bypassed close to this pin with an input capacitor."
      },
      {
        "number": "3",
        "name": "CBOOST/CB",
        "type": "input",
        "description": "Bootstrap capacitor connection that drives the high-side MOSFET gate above VIN; the datasheet specifies a 100nF quality capacitor between CB and the SW pin in the pin table, while Sections 6.3.3 and 7.1.6 recommend 0.01µF."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground reference for the regulator and the ground return of CIN and COUT, which should be kept as short as practical to CIN and connected to system ground."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "input",
        "description": "Synchronization input that locks the switching frequency to an external clock between 280kHz and 400kHz, which must be higher than the internal oscillator frequency; if left open the regulator runs at its internal 225kHz to 280kHz oscillator."
      },
      {
        "number": "6",
        "name": "Feedback/FB",
        "type": "input",
        "description": "Feedback sense input that sets the DC output voltage, connected to the feedback divider midpoint for the ADJ version or directly to the output for fixed-output versions such as the 5.0V part."
      },
      {
        "number": "7",
        "name": "ON/OFF",
        "type": "input",
        "description": "Regulator enable input where a high level turns the regulator on and pulling it below 0.8V fully shuts it down, and it must not exceed the 6V absolute maximum when electrically driven high."
      },
      {
        "number": "8",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Source pin table lists CBOOST/CB as 'I' (input), but the pin is a bootstrap capacitor connection; ke; Bootstrap capacitor value conflicts within the datasheet: the pin table (Table 4-1) specifies a 100n; The datasheet's DAP (die attach pad / tab) is the thermal pad connected to ground. It has no numbere",
          "exposed pad 8 added from the footprint"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1012,
        "at": "2026-10-12T08:15:59"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm2670",
        "pages": 42,
        "sha256": "0dc7dd45c243f2c8",
        "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"
    },
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        "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": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2670sx-5-0-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": "3c07d3d5ef1e0f228825dbafe735cb9f9b97e06fbfa7a50df1087c967071f450",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}