LM27342SD

{
  "slug": "lm27342sd",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, WSON-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm27342sd",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm27342sd.kicad_sym",
    "lm27342sd.kicad_mod",
    "lm27342sd.glb",
    "lm27342sd.step",
    "lm27342sd.lbr",
    "docs/hero.png",
    "docs/lm27342sd-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm27342sd-hero.glb",
    "lm27342sd-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM27342SD",
    "manufacturer": "Texas Instruments",
    "package": "WSON-10-EP(3x3)",
    "pin_count": 11,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm27342",
    "parts": {
      "symbol": "lm27342sd.kicad_sym",
      "footprint": "lm27342sd.kicad_mod",
      "model_3d": "lm27342sd-hero.glb",
      "model_3d_plain": "lm27342sd.glb",
      "model_3d_step": "lm27342sd-etched.step",
      "model_3d_step_plain": "lm27342sd.step",
      "lbr": "lm27342sd.lbr"
    },
    "distributor_links": {
      "lcsc": "C2070978"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:27:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Output switch that connects to the inductor, catch diode, and bootstrap capacitor; SW voltage is rated -0.5 V to 20 V recommended (24 V absolute maximum)."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "output",
        "description": "Output switch that connects to the inductor, catch diode, and bootstrap capacitor; SW voltage is rated -0.5 V to 20 V recommended (24 V absolute maximum)."
      },
      {
        "number": "3",
        "name": "BOOST",
        "type": "input",
        "description": "Boost voltage that drives the internal NMOS control switch, with a bootstrap capacitor connected between BOOST and SW; Boost-to-SW voltage is limited to 3 V to 5.5 V recommended."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable control input where logic high enables operation; do not let this pin float or exceed VIN + 0.3 V."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "input",
        "description": "Frequency synchronization input driven by an external clock or pulse train (1 MHz < fSW < 2.35 MHz), or grounded to use the internal 2 MHz clock."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin connected to the external resistor divider that sets the output voltage; FB voltage is limited to 3 V absolute maximum."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground; place the bottom resistor of the feedback network as close as possible to this pin for accurate regulation."
      },
      {
        "number": "8",
        "name": "AVIN",
        "type": "power_in",
        "description": "Supply voltage for the control circuitry, rated 3 V to 20 V recommended (24 V absolute maximum)."
      },
      {
        "number": "9",
        "name": "PVIN",
        "type": "power_in",
        "description": "Supply voltage for the output power stage; connect a bypass capacitor to this pin; rated 3 V to 20 V recommended (24 V absolute maximum)."
      },
      {
        "number": "10",
        "name": "PVIN",
        "type": "power_in",
        "description": "Supply voltage for the output power stage; connect a bypass capacitor to this pin; rated 3 V to 20 V recommended (24 V absolute maximum)."
      },
      {
        "number": "11",
        "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: Pinout taken from the 10-Pin WSON (DSC) top-view table on page 3. The package hint WSON-10-EP(3x3) m; Voltage limits in the descriptions (SW, BOOST-to-SW, AVIN/PVIN, FB) come from the Absolute Maximum a; Pin types are mapped to KiCad classes: SW as output, BOOST/EN/SYNC/FB as input (datasheet type I), A",
          "exposed pad 11 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0571,
        "at": "2026-10-08T15:27:14"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm27342",
        "pages": 55,
        "sha256": "cef0ca904e2ee532",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "lm27342sd.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.02
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1b436233b33ebba84da89538e97b0062d5b95e5ae0b484c46c569cb67274a3a5",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm27342sd-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,
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        "sha256": "d13e0dea67fb6a5ca78206064423ef1cc97f28abb1f0acc7c6a537f5b248a2a1",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}