TX4144

{
  "slug": "tx4144",
  "version": "0.1.0",
  "type": "component",
  "description": "XDS DC-DC Converters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tx4144",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tx4144.kicad_sym",
    "tx4144.kicad_mod",
    "tx4144.glb",
    "tx4144.step",
    "tx4144.lbr",
    "docs/hero.png",
    "docs/tx4144-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tx4144-hero.glb",
    "tx4144-hero.overlay.json",
    "tx4144-etched.glb"
  ],
  "component": {
    "mpn": "TX4144",
    "manufacturer": "XDS",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834768440459264",
    "parts": {
      "symbol": "tx4144.kicad_sym",
      "footprint": "tx4144.kicad_mod",
      "model_3d": "tx4144-hero.glb",
      "model_3d_plain": "tx4144-etched.glb",
      "model_3d_step": "tx4144-etched.step",
      "model_3d_step_plain": "tx4144.step",
      "lbr": "tx4144.lbr"
    },
    "distributor_links": {
      "lcsc": "C4153685"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:40:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Chip supply input; the datasheet gives a 6-60 V operating input range and an absolute maximum of -0.3 to 65 V for the VIN and EN pins."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Enable pin with 1.1 V rising and 0.8 V falling thresholds (300 mV hysteresis) and 100 µA maximum sink current; it must not be left floating and can be tied to VIN if enable control is not used."
      },
      {
        "number": "3",
        "name": "FS",
        "type": "input",
        "description": "Switching-frequency setting pin: an external resistor to ground sets fSW, floating gives 140 kHz typical, the recommended maximum is 500 kHz, and the absolute range is -0.3 to 6 V."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input compared against the 0.82 V internal reference (0.80-0.84 V) to set the output through the external R1/R2 divider, with an absolute range of -0.3 to 6 V."
      },
      {
        "number": "5",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin, to be connected with a large copper area together with VIN and SW to improve heat dissipation and long-term stability."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin, to be connected with a large copper area together with VIN and SW to improve heat dissipation and long-term stability."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "output",
        "description": "Switch output driving the inductor, with an absolute range of -0.3 V to VIN+0.3 V; its trace should be kept short and away from the FB feedback trace."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switch output driving the inductor, with an absolute range of -0.3 V to VIN+0.3 V; its trace should be kept short and away from the FB feedback trace."
      }
    ],
    "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: The pin-definition table on page 2 lists pins 5,6 as VSS and pins 7,8 as SW, but the package diagram; The datasheet covers only the SOP8 package, so the SOP-8 pinout applies to this MPN. No other packag"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0387,
        "at": "2026-10-18T13:38:51"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589834768440459264",
        "pages": 9,
        "sha256": "b31d4eae54563c6a",
        "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": "tx4144.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tx4144-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "703f2030b0856528bb38f76a0a95311de19c5e1ff8405e772d0a7ac9ba5a8761",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}