TPS53321RGTR

{
  "slug": "tps53321rgtr",
  "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 management (pmic)",
    "tps53321rgtr",
    "factory-2.0.0",
    "extractor-text"
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    "tps53321rgtr.step",
    "tps53321rgtr.lbr",
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    "docs/tps53321rgtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps53321rgtr-hero.glb",
    "tps53321rgtr-hero.overlay.json"
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  "component": {
    "mpn": "TPS53321RGTR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-16-EP(3x3)",
    "pin_count": 17,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps53321.pdf",
    "parts": {
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      "lbr": "tps53321rgtr.lbr"
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    "distributor_links": {
      "lcsc": "C2072223",
      "digikey": "296-28101-2-ND",
      "mouser": "595-TPS53321RGTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:31:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-28101-2-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "595-TPS53321RGTR",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable input, internally pulled up to VDD through a 1.35-MΩ resistor, with a high threshold of 1.1 V to 1.3 V and 0.18 V to 0.24 V hysteresis; recommended range is -0.1 V to 6 V."
      },
      {
        "number": "2",
        "name": "SYNC",
        "type": "bidirectional",
        "description": "Synchronization signal for input interleaving: the master sends a 180° out-of-phase signal to the slave, and the SYNC frequency must be within ±20% of the slave nominal frequency; recommended range is -0.1 V to 3.5 V."
      },
      {
        "number": "3",
        "name": "PGD",
        "type": "output",
        "description": "Open-drain power-good output flag that must be pulled up to an external rail through a resistor; recommended range is -0.1 V to 6 V."
      },
      {
        "number": "4",
        "name": "VBST",
        "type": "power_in",
        "description": "Supply input for the high-side MOSFET (bootstrap terminal); connect a capacitor from this pin to SW, with recommended VBST-to-SW range of -0.1 V to 6 V and VBST of -0.1 V to 13.5 V."
      },
      {
        "number": "5",
        "name": "SW",
        "type": "bidirectional",
        "description": "Output inductor connection to the integrated power devices; recommended SW range is -1 V to 6.5 V."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "bidirectional",
        "description": "Output inductor connection to the integrated power devices; recommended SW range is -1 V to 6.5 V."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "bidirectional",
        "description": "Output inductor connection to the integrated power devices; recommended SW range is -1 V to 6.5 V."
      },
      {
        "number": "8",
        "name": "PS",
        "type": "input",
        "description": "Mode configuration pin with a 10-µA pullup current: ground selects FCCM slave, 24.3 kΩ to GND selects DE slave, 57.6 kΩ selects HEF mode, 105 kΩ reserved, 174 kΩ selects DE master, and floating or high selects FCCM master; recommended range is -0.1 V to 3.5 V."
      },
      {
        "number": "9",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier compensation terminal, where Type III compensation is recommended for stability; recommended range is -0.1 V to 3.5 V."
      },
      {
        "number": "10",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input also used for overvoltage, undervoltage and power-good determination, with recommended range of -0.1 V to 3.5 V."
      },
      {
        "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, with 2.9 V to 3.5 V recommended (3.3 V nominal)."
      },
      {
        "number": "13",
        "name": "VIN",
        "type": "power_in",
        "description": "Gate driver supply and power conversion voltage input, with a 2.9 V to 6 V recommended range."
      },
      {
        "number": "14",
        "name": "VIN",
        "type": "power_in",
        "description": "Gate driver supply and power conversion voltage input, with a 2.9 V to 6 V recommended range."
      },
      {
        "number": "15",
        "name": "PGND",
        "type": "power_in",
        "description": "IC power ground terminal; recommended PGND range is -0.1 V to 0.1 V."
      },
      {
        "number": "16",
        "name": "PGND",
        "type": "power_in",
        "description": "IC power ground terminal; recommended PGND range is -0.1 V to 0.1 V."
      },
      {
        "number": "17",
        "name": "PGND Pad",
        "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 shows an exposed thermal pad (labelled 'PGND Pad' on page 1 and 'Thermal Pad' on page ; Pin types follow the datasheet's table: B (bidirectional) for SYNC and SW, O for PGD and COMP, I for; Package sizing is taken from the datasheet's RGT (QFN-16, 3 mm x 3 mm) package. The orderable addend",
          "exposed pad 17 added from the footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0914,
        "at": "2026-10-08T15:31:34"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps53321.pdf",
        "pages": 28,
        "sha256": "e4f58bb337095e37",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
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}