TPS54329DDAR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps54329ddar",
  "title": "TPS54329DDAR",
  "brief": "Texas Instruments DC-DC Converters, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "tps54329ddar",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TPS54329DDAR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps54329",
    "parts": {
      "symbol": "tps54329ddar.kicad_sym",
      "footprint": "tps54329ddar.kicad_mod",
      "model_3d": "tps54329ddar-etched.glb",
      "model_3d_plain": "tps54329ddar.glb",
      "model_3d_step": "tps54329ddar-etched.step",
      "model_3d_step_plain": "tps54329ddar.step",
      "lbr": "tps54329ddar.lbr"
    },
    "distributor_links": {
      "lcsc": "C37647"
    },
    "pins": [
      {
        "number": "1",
        "name": "VBST",
        "type": "power_in",
        "description": "Bootstrap supply for high-side FET gate drive; connect 0.1µF capacitor between VBST and SW pins, with internal diode to VREG5."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage supply pin."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Switch node connection between high-side NFET and low-side NFET."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground return for switching circuit; connect sensitive SS and VFB returns at a single point."
      },
      {
        "number": "5",
        "name": "VFB",
        "type": "input",
        "description": "Converter feedback input; connect to output voltage with feedback resistor divider."
      },
      {
        "number": "6",
        "name": "VREG5",
        "type": "power_out",
        "description": "5.5 V regulated power supply output; connect 0.47µF capacitor to GND (inactive when EN is low)."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Enable input control (active high); must be pulled up to enable the device."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "input",
        "description": "Soft-start control; connect external capacitor to GND for adjustable soft-start time."
      },
      {
        "number": "9",
        "name": "Exposed Thermal Pad",
        "type": "power_in",
        "description": "Thermal pad for heat dissipation; must be soldered to PCB and connected to GND."
      }
    ],
    "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": [
          "extractor flagged: Thermal pad pin number (9) is inferred from package outline diagram on page 27. The PIN FUNCTIONS ta",
          "1/9 pins cited to the wrong page (name found elsewhere): ['9:Exposed Thermal Pad@p5']"
        ],
        "pages_sent": 30,
        "cost_usd": 0.2427,
        "at": "2026-09-22T19:29:08"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps54329",
        "pages": 30,
        "sha256": "4e69e9b93fb82133",
        "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": [
      {
        "file": "tps54329ddar.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps54329ddar-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9b1e538e22e3253de0c44965ca31c9d913cc1c79a501be4e5955b09af325d423",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4e69e9b93fb82133",
      "rows": [
        {
          "name": "Input voltage range, VIN, EN",
          "symbol": "VIN, EN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range, VBST",
          "symbol": "VBST",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 26,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range, VBST (10 ns transient)",
          "symbol": "VBST",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 28,
          "conditions": "10 ns transient",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range, VBST (vs SW)",
          "symbol": "VBST (vs SW)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range, VFB, SS",
          "symbol": "VFB, SS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
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        },
        {
          "name": "Input voltage range, SW",
          "symbol": "SW",
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          "min": -2,
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        },
        {
          "name": "Input voltage range, SW (10 ns transient)",
          "symbol": "SW",
          "kind": "absolute_maximum",
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          "min": -3,
          "typ": null,
          "max": 22,
          "conditions": "10 ns transient",
          "source_page": 2,
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        },
        {
          "name": "Output voltage range, VREG5",
          "symbol": "VREG5",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Output voltage range, GND",
          "symbol": "GND",
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          "typ": null,
          "max": 0.3,
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        },
        {
          "name": "Voltage from GND to thermal pad",
          "symbol": "Vdiff",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.2,
          "typ": null,
          "max": 0.2,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge, Human Body Model (HBM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Human Body Model (HBM)",
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          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge, Charged Device Model (CDM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "Charged Device Model (CDM)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN supply input voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VBST",
          "symbol": "VBST",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 24,
          "conditions": "",
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        },
        {
          "name": "VBST (10 ns transient)",
          "symbol": "VBST",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 27,
          "conditions": "10 ns transient",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VBST (vs SW)",
          "symbol": "VBST (vs SW)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 5.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SS input voltage range",
          "symbol": "SS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 5.7,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "EN input voltage range",
          "symbol": "EN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VFB input voltage range",
          "symbol": "VFB",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SW input voltage range",
          "symbol": "SW",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -1.8,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SW input voltage range (10 ns transient)",
          "symbol": "SW",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -3,
          "typ": null,
          "max": 21,
          "conditions": "10 ns transient",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "GND voltage range",
          "symbol": "GND",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VREG5 output voltage range",
          "symbol": "VREG5",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 5.7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "IVREG5 output current range",
          "symbol": "IVREG5",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": 0,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN operating non-switching supply current",
          "symbol": "IVIN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 800,
          "max": 1200,
          "conditions": "TA = 25°C, EN = 5 V, VFB = 0.8 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN shutdown supply current",
          "symbol": "IVINSDN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 4.3,
          "max": 10,
          "conditions": "TA = 25°C, EN = 0 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN high-level input voltage",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": null,
          "conditions": "EN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN low-level input voltage",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "EN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN pin resistance to GND",
          "symbol": "REN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 220,
          "typ": 440,
          "max": 880,
          "conditions": "VEN = 12 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VFB threshold voltage",
          "symbol": "VFBTH",
          "kind": "electrical",
          "unit": "mV",
          "min": 749,
          "typ": 765,
          "max": 781,
          "conditions": "TA = 25°C, VO = 1.05 V, continuous mode",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VFB input current",
          "symbol": "IVFB",
          "kind": "electrical",
          "unit": "μA",
          "min": -0.1,
          "typ": 0,
          "max": 0.1,
          "conditions": "VFB = 0.8 V, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "Iocl",
          "kind": "electrical",
          "unit": "A",
          "min": 3.5,
          "typ": 4.2,
          "max": 5.7,
          "conditions": "L out = 1.5 μH",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown threshold",
          "symbol": "TSDN",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 165,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "TSDN",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 35,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SS charge current",
          "symbol": "ISSC",
          "kind": "electrical",
          "unit": "μA",
          "min": 4.2,
          "typ": 6,
          "max": 7.8,
          "conditions": "VSS = 1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SS discharge current",
          "symbol": "ISSD",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.1,
          "typ": 0.2,
          "max": null,
          "conditions": "VSS = 0.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VREG5 output voltage",
          "symbol": "VVREG5",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5.5,
          "max": null,
          "conditions": "TA = 25°C, 6.0 V < VIN < 18 V, 0 < IVREG5 < 5 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VREG5 output current",
          "symbol": "IVREG5",
          "kind": "electrical",
          "unit": "mA",
          "min": 60,
          "typ": null,
          "max": null,
          "conditions": "VIN = 6 V, VREG5 = 4.0 V, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High side switch resistance",
          "symbol": "RDS(on)h",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "25°C, VBST - SW = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low side switch resistance",
          "symbol": "RDS(on)l",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 74,
          "max": null,
          "conditions": "25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "On time",
          "symbol": "tON",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "VIN = 12 V, VO = 1.05 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum off time",
          "symbol": "tOFF(MIN)",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 260,
          "max": null,
          "conditions": "TA = 25°C, VFB = 0.7 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO wake up VREG5 voltage",
          "symbol": "UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.75,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis VREG5 voltage",
          "symbol": "UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.33,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal metric: junction-to-ambient thermal resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 42.1,
          "max": null,
          "conditions": "DDA (8 pins)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal metric: junction-to-case (top) thermal resistance",
          "symbol": "θJCtop",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 50.9,
          "max": null,
          "conditions": "DDA (8 pins)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal metric: junction-to-board thermal resistance",
          "symbol": "θJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 31.8,
          "max": null,
          "conditions": "DDA (8 pins)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal metric: junction-to-top characterization parameter",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "DDA (8 pins)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal metric: junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 13.5,
          "max": null,
          "conditions": "DDA (8 pins)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal metric: junction-to-case (bottom) thermal resistance",
          "symbol": "θJCbot",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 7.1,
          "max": null,
          "conditions": "DDA (8 pins)",
          "source_page": 2,
          "source": "datasheet"
        }
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