TPS2231PWR

{
  "slug": "tps2231pwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Power Distribution Switches, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps2231pwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps2231pwr.kicad_sym",
    "tps2231pwr.kicad_mod",
    "tps2231pwr.glb",
    "tps2231pwr.step",
    "tps2231pwr.lbr",
    "docs/hero.png",
    "docs/tps2231pwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps2231pwr-hero.glb",
    "tps2231pwr-hero.overlay.json",
    "tps2231pwr-etched.glb"
  ],
  "component": {
    "mpn": "TPS2231PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Distribution Switches",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps2231.pdf",
    "parts": {
      "symbol": "tps2231pwr.kicad_sym",
      "footprint": "tps2231pwr.kicad_mod",
      "model_3d": "tps2231pwr-hero.glb",
      "model_3d_plain": "tps2231pwr-etched.glb",
      "model_3d_step": "tps2231pwr-etched.step",
      "model_3d_step_plain": "tps2231pwr.step",
      "lbr": "tps2231pwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2862582"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:27:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SYSRST",
        "type": "input",
        "description": "Active-low system reset driven by the host that forces PERST to assert, with an internal pullup to AUXIN; logic input/output voltage absolute maximum is -0.3 to 6 V."
      },
      {
        "number": "2",
        "name": "SHDN",
        "type": "input",
        "description": "Active-low shutdown input that turns off all voltage outputs and activates the discharge FETs when asserted, with an internal pullup to AUXIN."
      },
      {
        "number": "3",
        "name": "STBY",
        "type": "input",
        "description": "Active-low standby input that, when asserted after card insertion, turns off the 3.3-V and 1.5-V switches while keeping AUX on, with an internal pullup to AUXIN."
      },
      {
        "number": "4",
        "name": "3.3VIN",
        "type": "power_in",
        "description": "3.3-V input supplying the 3.3VOUT switch; absolute maximum VI(3.3VIN) is -0.3 to 6 V."
      },
      {
        "number": "5",
        "name": "3.3VIN",
        "type": "power_in",
        "description": "3.3-V input supplying the 3.3VOUT switch; absolute maximum VI(3.3VIN) is -0.3 to 6 V."
      },
      {
        "number": "6",
        "name": "3.3VOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, 3.3 V or high impedance to the card; absolute maximum VO(3.3VOUT) is -0.3 to 6 V and output current is internally limited."
      },
      {
        "number": "7",
        "name": "3.3VOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, 3.3 V or high impedance to the card; absolute maximum VO(3.3VOUT) is -0.3 to 6 V and output current is internally limited."
      },
      {
        "number": "8",
        "name": "PERST",
        "type": "output",
        "description": "Logic-level power-good output to slot 0 (with delay) that remains asserted low until all rails are within tolerance; PERST sink/source current is limited to 10 mA absolute maximum."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "11",
        "name": "CPUSB",
        "type": "input",
        "description": "Card-present input for USB cards; a logic low indicates the card supports USB functions, with an internal pullup to AUXIN."
      },
      {
        "number": "12",
        "name": "CPPE",
        "type": "input",
        "description": "Card-present input for PCI Express cards; a logic low indicates the card supports PCI Express functions, with an internal pullup to AUXIN."
      },
      {
        "number": "13",
        "name": "1.5VOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, 1.5 V or high impedance to the card; absolute maximum VO(1.5VOUT) is -0.3 to 6 V and output current is internally limited."
      },
      {
        "number": "14",
        "name": "1.5VOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, 1.5 V or high impedance to the card; absolute maximum VO(1.5VOUT) is -0.3 to 6 V and output current is internally limited."
      },
      {
        "number": "15",
        "name": "1.5VIN",
        "type": "power_in",
        "description": "1.5-V input supplying the 1.5VOUT switch; absolute maximum VI(1.5VIN) is -0.3 to 6 V."
      },
      {
        "number": "16",
        "name": "1.5VIN",
        "type": "power_in",
        "description": "1.5-V input supplying the 1.5VOUT switch; absolute maximum VI(1.5VIN) is -0.3 to 6 V."
      },
      {
        "number": "17",
        "name": "AUXOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, AUX or high impedance to the card; absolute maximum VO(AUXOUT) is -0.3 to 6 V and output current is internally limited."
      },
      {
        "number": "18",
        "name": "AUXIN",
        "type": "power_in",
        "description": "AUX input that supplies the AUXOUT switch and chip power; absolute maximum VI(AUXIN) is -0.3 to 6 V."
      },
      {
        "number": "19",
        "name": "RCLKEN",
        "type": "bidirectional",
        "description": "Reference clock enable that acts as a power-good output to the host for slot 0 (no delay, open drain) and, when held low externally, as an input that delays PERST de-assertion; it is internally pulled up to AUXIN and must not be driven high."
      },
      {
        "number": "20",
        "name": "OC",
        "type": "output",
        "description": "Open-drain overcurrent status output for slot 0 that is pulled low when any of the AUX, 3.3-V or 1.5-V switches is in overcurrent; OC sink current is limited to 10 mA absolute maximum."
      }
    ],
    "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 PW pin-number assignment is taken from the terminal functions table (page 8) and confirmed again; The datasheet labels the supply rail pins 3.3VIN, 1.5VIN and AUXIN as inputs (I). They are typed her; The switched card outputs are labeled O in the datasheet. They are typed here as power_out because t"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0904,
        "at": "2026-10-17T20:26:20"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps2231.pdf",
        "pages": 44,
        "sha256": "c6bc7fcb544329ed",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tps2231pwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps2231pwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b9d5cc8ea64deb14dbae090264f5767629c6219d1762d3fa7da1ecdcb0632ca4",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}