TPS53321RGTT

{
  "slug": "tps53321rgtt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "tps53321rgtt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps53321rgtt.kicad_sym",
    "tps53321rgtt.kicad_mod",
    "tps53321rgtt.glb",
    "tps53321rgtt.step",
    "tps53321rgtt.lbr",
    "docs/hero.png",
    "docs/tps53321rgtt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps53321rgtt-hero.glb",
    "tps53321rgtt-hero.overlay.json"
  ],
  "component": {
    "mpn": "TPS53321RGTT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps53321",
    "parts": {
      "symbol": "tps53321rgtt.kicad_sym",
      "footprint": "tps53321rgtt.kicad_mod",
      "model_3d": "tps53321rgtt-hero.glb",
      "model_3d_plain": "tps53321rgtt.glb",
      "model_3d_step": "tps53321rgtt-etched.step",
      "model_3d_step_plain": "tps53321rgtt.step",
      "lbr": "tps53321rgtt.lbr"
    },
    "distributor_links": {
      "lcsc": "C1880062",
      "digikey": "296-TPS53321RGTTTR-ND",
      "mouser": "595-TPS53321RGTT"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T08:31:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TPS53321RGTTTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS53321RGTT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable input, internally pulled up to VDD with a 1.35-MΩ resistor."
      },
      {
        "number": "2",
        "name": "SYNC",
        "type": "bidirectional",
        "description": "Synchronization signal for input interleaving; master sends 180° out-of-phase signal to slave, and SYNC frequency must be within ±20% of slave nominal frequency."
      },
      {
        "number": "3",
        "name": "PGD",
        "type": "output",
        "description": "Open-drain power good output flag, pulled up to an external rail through a resistor."
      },
      {
        "number": "4",
        "name": "VBST",
        "type": "power_in",
        "description": "Supply input for high-side MOSFET (bootstrap terminal), with a capacitor connected from this pin to SW."
      },
      {
        "number": "5",
        "name": "SW",
        "type": "bidirectional",
        "description": "Output inductor connection to integrated power devices."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "bidirectional",
        "description": "Output inductor connection to integrated power devices."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "bidirectional",
        "description": "Output inductor connection to integrated power devices."
      },
      {
        "number": "8",
        "name": "PS",
        "type": "input",
        "description": "Mode configuration pin (10-µA current): ground = FCCM slave, high/floating = FCCM master, 24.3 kΩ = DE slave, 57.6 kΩ = HEF mode, 105 kΩ = reserved, 174 kΩ = DE master."
      },
      {
        "number": "9",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier compensation terminal; Type III compensation is recommended for stability."
      },
      {
        "number": "10",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input, also used for OVP, UVP, and PGD determination."
      },
      {
        "number": "11",
        "name": "AGND",
        "type": "power_in",
        "description": "Device analog ground terminal."
      },
      {
        "number": "12",
        "name": "VDD",
        "type": "power_in",
        "description": "Input bias supply for analog functions, 2.9 V to 3.5 V recommended."
      },
      {
        "number": "13",
        "name": "VIN",
        "type": "power_in",
        "description": "Gate driver supply and power conversion voltage input, 2.9 V to 6 V."
      },
      {
        "number": "14",
        "name": "VIN",
        "type": "power_in",
        "description": "Gate driver supply and power conversion voltage input, 2.9 V to 6 V."
      },
      {
        "number": "15",
        "name": "PGND",
        "type": "power_in",
        "description": "IC power ground terminal."
      },
      {
        "number": "16",
        "name": "PGND",
        "type": "power_in",
        "description": "IC power ground terminal."
      },
      {
        "number": "17",
        "name": "PGND",
        "type": "power_in",
        "description": "Thermal pad, connected to PGND per the typical application circuit."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.1342,
        "at": "2026-10-07T08:31:22"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps53321",
        "pages": 28,
        "sha256": "e4f58bb337095e37",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tps53321rgtt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.785
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps53321rgtt-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": "f883cbff8a333f48ee0884bb4330d0c45ffd5fc6d02a7367947f5312b464cf1c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}