TX41601

{
  "slug": "tx41601",
  "version": "0.1.0",
  "type": "component",
  "description": "XDS DC-DC Converters, ETSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tx41601",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tx41601.kicad_sym",
    "tx41601.kicad_mod",
    "tx41601.glb",
    "tx41601.step",
    "tx41601.lbr",
    "docs/hero.png",
    "docs/tx41601-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tx41601-hero.glb",
    "tx41601-hero.overlay.json"
  ],
  "component": {
    "mpn": "TX41601",
    "manufacturer": "XDS",
    "package": "ETSSOP-20",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234906153684992",
    "parts": {
      "symbol": "tx41601.kicad_sym",
      "footprint": "tx41601.kicad_mod",
      "model_3d": "tx41601-hero.glb",
      "model_3d_plain": "tx41601.glb",
      "model_3d_step": "tx41601-etched.step",
      "model_3d_step_plain": "tx41601.step",
      "lbr": "tx41601.lbr"
    },
    "distributor_links": {
      "lcsc": "C5155130"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T14:25:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: the part is enabled when EN is pulled above 1.2 V and enters shutdown when pulled below 1.0 V, with EN absolute maximum of 100 V to GND."
      },
      {
        "number": "2",
        "name": "OVLO",
        "type": "input",
        "description": "Overvoltage lockout input, driven from an external divider to set the input overvoltage threshold; when OVLO is pulled above 1.2 V the controller is disabled and does not resume switching until EN is toggled."
      },
      {
        "number": "3",
        "name": "OCSET",
        "type": "passive",
        "description": "Current-limit set point: a resistor from this pin to GND sets the positive and negative cycle-by-cycle current-limit thresholds, with OCSET rated to 6 V absolute maximum."
      },
      {
        "number": "4",
        "name": "RON",
        "type": "passive",
        "description": "Switching frequency set: a resistor from this pin to GND programs the switching frequency over 50 kHz to 500 kHz, with RON rated to 6 V absolute maximum."
      },
      {
        "number": "5",
        "name": "TOFF",
        "type": "input",
        "description": "Programmable shutdown delay: tie to GND for no delay, leave floating for 10 s, or tie to VCC for 20 s; TOFF absolute maximum is 12 V to GND."
      },
      {
        "number": "6",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start: an external capacitor from this pin to GND sets the output start-up time, with SS rated to 6 V absolute maximum."
      },
      {
        "number": "7",
        "name": "AGND",
        "type": "power_in",
        "description": "Signal ground for the internal reference and control circuitry."
      },
      {
        "number": "8",
        "name": "COMP",
        "type": "passive",
        "description": "Error amplifier output: an external resistor and capacitor network is normally connected from this pin to GND to provide loop compensation, with COMP rated to 6 V absolute maximum."
      },
      {
        "number": "9",
        "name": "FB",
        "type": "input",
        "description": "Feedback input sensing the output voltage through a resistor divider from output to GND; FB is a sensitive node that should be kept away from SW and BST, and is rated to 6 V absolute maximum."
      },
      {
        "number": "10",
        "name": "EXTVCC",
        "type": "power_in",
        "description": "External supply input for the internal VCC LDO; it bypasses the NDRV LDO when above 10 V, must not exceed 30 V or be connected above VIN, and should be tied to GND if unused."
      },
      {
        "number": "11",
        "name": "ISNS2",
        "type": "input",
        "description": "Inductor current sense input 2 (absolute maximum -0.3 V to 65 V to GND, recommended up to 60 V)."
      },
      {
        "number": "12",
        "name": "ISNS1",
        "type": "input",
        "description": "Inductor current sense input 1 (absolute maximum -0.3 V to 65 V to GND, recommended up to 60 V)."
      },
      {
        "number": "13",
        "name": "NDRV",
        "type": "output",
        "description": "Gate drive output for the external pass device (NMOS or NPN) of the VCC NDRV LDO regulator."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_out",
        "description": "Internal supply rail for the IC that is regulated to about 9 V to 10 V and requires at least 4.7 µF of capacitance to GND; VDD is rated to 12 V absolute maximum."
      },
      {
        "number": "15",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground that serves as a separate ground for the MOSFET drivers and should be connected to the system power ground plane."
      },
      {
        "number": "16",
        "name": "LDRV",
        "type": "output",
        "description": "Output driver for the low-side MOSFET, rated to 10 V recommended and 12 V absolute maximum to GND."
      },
      {
        "number": "17",
        "name": "BST",
        "type": "power_in",
        "description": "Bootstrap supply for the high-side driver, which must be held above the input voltage, with a minimum 0.1 µF high-frequency capacitor connected from this pin to SW; BST is rated to 12 V absolute maximum to SW."
      },
      {
        "number": "18",
        "name": "SW",
        "type": "passive",
        "description": "Switch node connected to the source of the upper MOSFET and the drain of the lower MOSFET and serving as the return path for the high-side gate driver; SW ranges from -3 V to VIN+0.3 V to GND."
      },
      {
        "number": "19",
        "name": "HDRV",
        "type": "output",
        "description": "Output driver for the high-side MOSFET, rated to 10 V recommended and 12 V absolute maximum to SW."
      },
      {
        "number": "20",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage: operates from 12 V to 100 V (absolute maximum 100 V to GND)."
      },
      {
        "number": "21",
        "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: Datasheet gives a single package (ETSSOP-20) and the ordering table confirms TX41601 is supplied in ; Pin types are engineering judgments where the datasheet gives only a function: COMP and OCSET/RON/SS; Some descriptions were condensed from the Chinese source; the Chinese datasheet text for the pin tab",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0666,
        "at": "2026-10-09T14:22:54"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234906153684992",
        "pages": 17,
        "sha256": "c126170f7ad9a94e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tx41601.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7a0251e13b07dd6c1b086d69741c02849106cddb90d1e188d1f17dfcba69e646",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tx41601-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "80fe966fb67c3380bd74d6d23bc4100526b578cd41e212cca98b491c2cd044bf",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}