TPS54331DDA

{
  "slug": "tps54331dda",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps54331dda",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps54331dda.kicad_sym",
    "tps54331dda.kicad_mod",
    "tps54331dda.glb",
    "tps54331dda.step",
    "tps54331dda.lbr",
    "docs/hero.png",
    "docs/tps54331dda-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "TPS54331DDA",
    "manufacturer": "Texas Instruments",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps54331",
    "parts": {
      "symbol": "tps54331dda.kicad_sym",
      "footprint": "tps54331dda.kicad_mod",
      "model_3d": "tps54331dda-etched.glb",
      "model_3d_plain": "tps54331dda.glb",
      "model_3d_step": "tps54331dda-etched.step",
      "model_3d_step_plain": "tps54331dda.step",
      "lbr": "tps54331dda.lbr"
    },
    "distributor_links": {
      "lcsc": "C1355528"
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "output",
        "description": "Bootstrap voltage output for high-side MOSFET gate drive; requires 0.1μF capacitor between BOOT and PH pins to maintain gate bias voltage above 2.1V minimum."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input power supply voltage pin; supports 3.5V to 28V operating range."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable/disable control input; pull below 1.25V to disable converter or leave floating to enable; UVLO threshold programmable using external resistor divider."
      },
      {
        "number": "4",
        "name": "SS",
        "type": "input",
        "description": "Slow start input; connect external capacitor to set output rise time from 1ms to 10ms using 2μA charge current."
      },
      {
        "number": "5",
        "name": "VSENSE",
        "type": "input",
        "description": "Feedback input to inverting node of transconductance error amplifier for output voltage regulation and current limiting."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output and PWM comparator input; connect external frequency compensation network between this pin and ground."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; low-side MOSFET source connection and current return path."
      },
      {
        "number": "8",
        "name": "PH",
        "type": "output",
        "description": "High-side MOSFET source output; internal 80mΩ MOSFET switch node with 570kHz fixed switching frequency."
      },
      {
        "number": "9",
        "name": "PowerPAD",
        "type": "power_in",
        "description": "Exposed thermal pad for ground connection and heat dissipation; must be connected to ground plane for proper thermal performance (DDA package only)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 40,
        "cost_usd": 0.3461,
        "at": "2026-09-24T07:40:10"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps54331",
        "pages": 40,
        "sha256": "6ac89d4fddb009ba",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tps54331dda.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps54331dda-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": "39510e5879d94806caae658016ba6416fe32003921e944097bf7039d684de4a8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}