LMR51420XFDDCR

{
  "slug": "lmr51420xfddcr",
  "version": "0.1.0",
  "type": "component",
  "description": "TEXAS INSTRUMENTS Global Sourcing Parts, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "global sourcing parts",
    "lmr51420xfddcr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lmr51420xfddcr.kicad_sym",
    "lmr51420xfddcr.kicad_mod",
    "lmr51420xfddcr.glb",
    "lmr51420xfddcr.step",
    "lmr51420xfddcr.lbr",
    "docs/hero.png",
    "docs/lmr51420xfddcr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lmr51420xfddcr-hero.glb",
    "lmr51420xfddcr-hero.overlay.json",
    "lmr51420xfddcr-etched.glb"
  ],
  "component": {
    "mpn": "LMR51420XFDDCR",
    "manufacturer": "TEXAS INSTRUMENTS",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lmr51420.pdf",
    "parts": {
      "symbol": "lmr51420xfddcr.kicad_sym",
      "footprint": "lmr51420xfddcr.kicad_mod",
      "model_3d": "lmr51420xfddcr-hero.glb",
      "model_3d_plain": "lmr51420xfddcr-etched.glb",
      "model_3d_step": "lmr51420xfddcr-etched.step",
      "model_3d_step_plain": "lmr51420xfddcr.step",
      "lbr": "lmr51420xfddcr.lbr"
    },
    "distributor_links": {
      "lcsc": "C5752071",
      "digikey": "296-LMR51420XFDDCRTR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:44:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-LMR51420XFDDCRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground terminal connected internally to the source of the low-side FET; connect to system ground and the ground side of CIN and COUT with the shortest possible path to CIN."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "passive",
        "description": "Switching output of the converter, connected to the source of the high-side FET and drain of the low-side FET; connect to the power inductor."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input to the internal bias LDO and high-side FET (4.5 V to 36 V operating); connect to the input supply with input bypass capacitors CIN placed directly at this pin and GND."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input connected to a resistor divider from VOUT to set the output voltage against the 0.6-V reference; never short this pin to ground during operation."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Precision enable input (rising threshold 1.227 V typ, falling 1.08 V typ; high = on, low = off) that can be tied to VIN or used with a divider for adjustable UVLO; do not float, and keep it no more than 0.3 V above VIN."
      },
      {
        "number": "6",
        "name": "CB",
        "type": "passive",
        "description": "Bootstrap capacitor connection for the high-side FET driver; connect a high-quality 100-nF capacitor from this pin to the SW pin."
      }
    ],
    "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: Package hint said SOT-23-6, but the orderable addendum lists LMR51420XFDDCR as SOT-23-THIN (DDC) 6-p; Pin types were mapped from the datasheet's A/P/G classes. SW and CB are marked P (power) in the data"
        ],
        "pages_sent": 33,
        "cost_usd": 0.3364,
        "at": "2026-10-22T21:44:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lmr51420.pdf",
        "pages": 33,
        "sha256": "8cc7e8bc4ef9adba",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "lmr51420xfddcr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lmr51420xfddcr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "899c75fe8965e30d1cf2ad42727f115d8e9c0a8d78d2bded82371c1875f776b4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}