TPS2231RGPR

{
  "slug": "tps2231rgpr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Power Distribution Switches, VQFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "tps2231rgpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps2231rgpr.kicad_sym",
    "tps2231rgpr.kicad_mod",
    "tps2231rgpr.glb",
    "tps2231rgpr.step",
    "tps2231rgpr.lbr",
    "docs/hero.png",
    "docs/tps2231rgpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps2231rgpr-hero.glb",
    "tps2231rgpr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TPS2231RGPR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "Power Supply Chip",
    "subcategory": "Power Distribution Switches",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps2231",
    "parts": {
      "symbol": "tps2231rgpr.kicad_sym",
      "footprint": "tps2231rgpr.kicad_mod",
      "model_3d": "tps2231rgpr-hero.glb",
      "model_3d_plain": "tps2231rgpr.glb",
      "model_3d_step": "tps2231rgpr-etched.step",
      "model_3d_step_plain": "tps2231rgpr.step",
      "lbr": "tps2231rgpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2150286",
      "digikey": "296-42374-2-ND",
      "mouser": "595-TPS2231RGPR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:34:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-42374-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS2231RGPR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "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 and keeps AUX on; internally pulled up to AUXIN."
      },
      {
        "number": "2",
        "name": "3.3VIN",
        "type": "power_in",
        "description": "3.3-V input supply for the 3.3VOUT switch; absolute maximum input range is -0.3 V to 6 V."
      },
      {
        "number": "3",
        "name": "3.3VOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, 3.3 V or high impedance to the card."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "6",
        "name": "SYSRST",
        "type": "input",
        "description": "Active-low system reset input driven by the host that forces PERST to assert; internally pulled up to AUXIN."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "8",
        "name": "PERST",
        "type": "output",
        "description": "Logic-level power-good output to slot 0 (with delay), asserted low until all rails are in tolerance and RCLKEN is released."
      },
      {
        "number": "9",
        "name": "CPUSB",
        "type": "input",
        "description": "Card-present input for USB cards; logic low indicates the card supports USB functions; internally pulled up to AUXIN."
      },
      {
        "number": "10",
        "name": "CPPE",
        "type": "input",
        "description": "Card-present input for PCI Express cards; logic low indicates the card supports PCI Express functions; internally pulled up to AUXIN."
      },
      {
        "number": "11",
        "name": "1.5VOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, 1.5 V or high impedance to the card."
      },
      {
        "number": "12",
        "name": "1.5VIN",
        "type": "power_in",
        "description": "1.5-V input for the 1.5VOUT switch; absolute maximum input range is -0.3 V to 6 V."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "15",
        "name": "AUXOUT",
        "type": "power_out",
        "description": "Switched output that delivers 0 V, AUX or high impedance to the card."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "17",
        "name": "AUXIN",
        "type": "power_in",
        "description": "AUX input for AUXOUT and chip power; absolute maximum input range is -0.3 V to 6 V."
      },
      {
        "number": "18",
        "name": "RCLKEN",
        "type": "bidirectional",
        "description": "Reference clock enable: as an output it is a open-drain power-good to the host for slot 0 (no delay); as an input, holding it low prevents PERST from being de-asserted; internally pulled up to AUXIN."
      },
      {
        "number": "19",
        "name": "OC",
        "type": "output",
        "description": "Open-drain overcurrent status output for slot 0, asserted low when an overcurrent condition occurs on the AUX, 3.3-V or 1.5-V switch."
      },
      {
        "number": "20",
        "name": "SHDN",
        "type": "input",
        "description": "Active-low shutdown input that turns off all voltage outputs and activates the discharge FETs; internally pulled up to AUXIN."
      },
      {
        "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: The datasheet's terminal table gives no pin number for the exposed thermal pad (PowerPAD) on the RGP; The package is listed as QFN (RGP) with 20 pins in the package addendum. The 4x4 mm body size named ; Pin 4, 5, 13, 14 and 16 are marked NC in the RGP column of the terminal table, which the datasheet c",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.1001,
        "at": "2026-10-08T15:33:40"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps2231",
        "pages": 44,
        "sha256": "c6bc7fcb544329ed",
        "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": "tps2231rgpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps2231rgpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "169e8e57284a8aa2cfffcf47322e296570091c5e7191873d4eb0c1bff42b6136",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}