LM34923MMX

{
  "slug": "lm34923mmx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm34923mmx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm34923mmx.kicad_sym",
    "lm34923mmx.kicad_mod",
    "lm34923mmx.glb",
    "lm34923mmx.step",
    "lm34923mmx.lbr",
    "docs/hero.png",
    "docs/lm34923mmx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm34923mmx-hero.glb",
    "lm34923mmx-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM34923MMX",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-10-0.5mm",
    "pin_count": 10,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm34923",
    "parts": {
      "symbol": "lm34923mmx.kicad_sym",
      "footprint": "lm34923mmx.kicad_mod",
      "model_3d": "lm34923mmx-hero.glb",
      "model_3d_plain": "lm34923mmx.glb",
      "model_3d_step": "lm34923mmx-etched.step",
      "model_3d_step_plain": "lm34923mmx.step",
      "lbr": "lm34923mmx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071340"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T14:40:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "power_out",
        "description": "Switching node that connects to the output inductor, re-circulating diode or synchronous FET, and the bootstrap capacitor."
      },
      {
        "number": "2",
        "name": "BST",
        "type": "passive",
        "description": "An external capacitor of 0.01uF or greater (ceramic) is required between BST and SW, and it is charged from VCC through an internal diode when SW is low."
      },
      {
        "number": "3",
        "name": "N/C",
        "type": "unconnected",
        "description": "Do not connect."
      },
      {
        "number": "4",
        "name": "RTN",
        "type": "power_in",
        "description": "Ground pin for the entire circuit."
      },
      {
        "number": "5",
        "name": "UV",
        "type": "input",
        "description": "A resistor divider from VIN or another system voltage programs the under-voltage detection threshold, and an internal current sink is enabled when UV is below 2.5V to provide hysteresis."
      },
      {
        "number": "6",
        "name": "UVO",
        "type": "output",
        "description": "Open-drain under-voltage status output that is high when the UV pin is below 2.5V or when the VCC UVLO or shutdown function is invoked."
      },
      {
        "number": "7",
        "name": "FB",
        "type": "input",
        "description": "Feedback input connected to the inverting input of the internal regulation comparator, with a regulation level of 2.5V."
      },
      {
        "number": "8",
        "name": "RT/SD",
        "type": "input",
        "description": "A resistor between this pin and VIN sets the switch on-time (minimum recommended 200 ns at maximum input voltage), and taking this pin to ground shuts off the regulator."
      },
      {
        "number": "9",
        "name": "VCC",
        "type": "power_out",
        "description": "Output of the internal high-voltage series-pass regulator, regulated at approximately 7.5V and current limited at about 30 mA, that requires a 1uF ceramic capacitor to ground."
      },
      {
        "number": "10",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage with an operating input range of 6V to 75V."
      }
    ],
    "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: Pin numbers and names are taken from the Table 1 Pin Descriptions and cross-checked against the Figu; The requested MPN is LM34923MMX, but the datasheet packaging tables list the orderable part as LM349; The hint says VSSOP-10-0.5mm, but the text gives only '10-Pin VSSOP' and package code DGS; the 0.5 m"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0367,
        "at": "2026-10-11T14:39:46"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm34923",
        "pages": 28,
        "sha256": "f665b4486b01209d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm34923mmx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d71703260ed42aaed19e2a337664131546a2abfeff141871b3a074fb939ee580",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}