TPS40303DRCR

{
  "slug": "tps40303drcr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Controllers, WSON-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "tps40303drcr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps40303drcr.kicad_sym",
    "tps40303drcr.kicad_mod",
    "tps40303drcr.glb",
    "tps40303drcr.step",
    "tps40303drcr.lbr",
    "docs/hero.png",
    "docs/tps40303drcr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps40303drcr-hero.glb",
    "tps40303drcr-hero.overlay.json",
    "tps40303drcr-etched.glb"
  ],
  "component": {
    "mpn": "TPS40303DRCR",
    "manufacturer": "Texas Instruments",
    "package": "WSON-10-EP(3x3)",
    "pin_count": 11,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps40303.pdf",
    "parts": {
      "symbol": "tps40303drcr.kicad_sym",
      "footprint": "tps40303drcr.kicad_mod",
      "model_3d": "tps40303drcr-hero.glb",
      "model_3d_plain": "tps40303drcr-etched.glb",
      "model_3d_step": "tps40303drcr-etched.step",
      "model_3d_step_plain": "tps40303drcr.step",
      "lbr": "tps40303drcr.lbr"
    },
    "distributor_links": {
      "lcsc": "C702244"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:34:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 869 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power input to the controller (3 V to 20 V operating, 22 V absolute max); bypass to GND with a low ESR ceramic capacitor of at least 1 µF close to the device."
      },
      {
        "number": "2",
        "name": "EN/SS",
        "type": "input",
        "description": "Logic-level enable and soft-start pin: floating turns the controller on, pulling low disables it, a capacitor to GND sets soft-start time using a 10 µA internal source, and an optional 267-kΩ resistor to BP enables FSS."
      },
      {
        "number": "3",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power good output."
      },
      {
        "number": "4",
        "name": "COMP",
        "type": "output",
        "description": "Output of the error amplifier and connection node for loop feedback components."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Inverting input to the error amplifier; in normal operation its voltage equals the internal 600 mV reference."
      },
      {
        "number": "6",
        "name": "BOOT",
        "type": "power_in",
        "description": "Gate drive voltage for the high-side N-channel MOSFET; a 0.1 µF capacitor (typical) connects between this pin and SW, with an optional Schottky diode from BP to BOOT for low input voltage operation."
      },
      {
        "number": "7",
        "name": "HDRV",
        "type": "output",
        "description": "Bootstrapped gate drive output for the high-side N-channel MOSFET."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "passive",
        "description": "Sense line for the adaptive anti-cross conduction circuitry and common connection for the flying high-side FET driver."
      },
      {
        "number": "9",
        "name": "LDRV/OC",
        "type": "output",
        "description": "Gate drive output for the low-side synchronous rectifier N-channel MOSFET; a resistor to GND sets the OCP voltage level using a 10 µA internal current source during calibration."
      },
      {
        "number": "10",
        "name": "BP",
        "type": "power_out",
        "description": "Output bypass for the internal regulator; connect a low ESR ceramic capacitor of 1 µF or greater from this pin to GND."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Thermal pad providing the electrical ground connection and a low thermal impedance path to the PCB; tie externally to a ground plane."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-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 lists the thermal pad as 'GND Thermal Pad' with no pin number. Pin number '11' is an a; The package hint says WSON-10-EP(3x3), but the datasheet and orderable addendum call the package VSO; The datasheet gives the I/O direction for BOOT and SW only as 'I' for BOOT and 'O' for SW. The types"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0863,
        "at": "2026-10-23T18:34:20"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps40303.pdf",
        "pages": 42,
        "sha256": "d41d25bea2bc30ba",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tps40303drcr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          2.98,
          1.02
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1b436233b33ebba84da89538e97b0062d5b95e5ae0b484c46c569cb67274a3a5",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps40303drcr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "aac03a824b43f36be62e243919de8b5fc4c9104c61679ea6e79643a59dbfb48d",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}