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Ray Set visibility: public e44ce73 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "lmr33620cddar",
  "title": "LMR33620CDDAR",
  "brief": "Texas Instruments DC-DC Converters, SO-8. 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)",
    "lmr33620cddar",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LMR33620CDDAR",
    "manufacturer": "Texas Instruments",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lmr33620.pdf",
    "parts": {
      "symbol": "lmr33620cddar.kicad_sym",
      "footprint": "lmr33620cddar.kicad_mod",
      "model_3d": "lmr33620cddar-hero.glb",
      "model_3d_plain": "lmr33620cddar-etched.glb",
      "model_3d_step": "lmr33620cddar-etched.step",
      "model_3d_step_plain": "lmr33620cddar.step",
      "lbr": "lmr33620cddar.lbr"
    },
    "distributor_links": {
      "lcsc": "C2070921",
      "digikey": "296-51357-2-ND",
      "mouser": "595-LMR33620CDDAR"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T21:36:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-51357-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-LMR33620CDDAR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground terminal that must connect to system ground and AGND, with bypass capacitor connected using short wide traces."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply to the regulator, specified from 3.8 V to 36 V, with a high-quality bypass capacitor connected directly to this pin and PGND."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input where high turns the regulator on and low turns it off; it can be connected directly to VIN but must not float."
      },
      {
        "number": "4",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power-good flag output that is pulled low when EN is low or power is bad, and requires a current-limiting resistor to a supply when used."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback input connected to the tap point of the feedback voltage divider, which must not float or be grounded."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal 5-V LDO output used as the supply for internal control circuits, which must not drive external loads and needs a high-quality 1-µF capacitor to GND."
      },
      {
        "number": "7",
        "name": "BOOT",
        "type": "power_out",
        "description": "Boot-strap supply for the internal high-side driver, connected through a high-quality 100-nF capacitor to the SW pin."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "power_out",
        "description": "Regulator switch node that connects to the power inductor."
      }
    ],
    "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: AGND is carried on the HSOIC thermal pad, which has no numbered pin in the Table 6-1 HSOIC column, s"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0181,
        "at": "2026-11-05T21:36:50"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lmr33620.pdf",
        "pages": 59,
        "sha256": "865af73e62240338",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lmr33620cddar.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lmr33620cddar-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4ebeda682ba09c0cdf33a81b204c87975e8ec446866a7136199e268ad657fd88",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SO-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": "9. Keep switch area small. Keep the copper area connecting the SW pin to the inductor as short and wide as",
        "page": 32,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "865af73e62240338821cc0915dae0eeabec94f4602e0e7cc5fb1c1d49d3daf2b"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "865af73e62240338821cc0915dae0eeabec94f4602e0e7cc5fb1c1d49d3daf2b",
      "rows": [
        {
          "name": "VIN to PGND",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 38,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN to AGND",
          "symbol": "VEN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max VIN + 0.3 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "FB to AGND",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG to AGND",
          "symbol": "VPG",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 22,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "AGND to PGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "SW to PGND",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max VIN + 0.3 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "SW to PGND transient",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -3.5,
          "typ": null,
          "max": 38,
          "conditions": "less than 100-ns transients",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "BOOT to SW",
          "symbol": "VBOOT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VCC to AGND",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage VIN to PGND",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.8,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN input voltage",
          "symbol": "VEN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "max VIN",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG voltage",
          "symbol": "VPG",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum operating input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 3.8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Non-switching input current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 24,
          "max": 34,
          "conditions": "VFB = 1.2 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown quiescent current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "EN = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN input level to start switching, rising threshold",
          "symbol": "VEN-H",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": 1.231,
          "max": 1.26,
          "conditions": "Rising threshold",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Internal LDO output voltage at VCC",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "6 V ≤ VIN ≤ 36 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High-side current limit",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "A",
          "min": 2.9,
          "typ": 3.5,
          "max": 4,
          "conditions": "LMR33620",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-side current limit",
          "symbol": "ILIMIT",
          "kind": "electrical",
          "unit": "A",
          "min": 1.95,
          "typ": 2.45,
          "max": 2.9,
          "conditions": "LMR33620",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Internal soft-start time",
          "symbol": "tSS",
          "kind": "electrical",
          "unit": "ms",
          "min": 2.9,
          "typ": 4,
          "max": 6,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good upper threshold rising",
          "symbol": "VPG-HIGH-UP",
          "kind": "tolerance",
          "unit": "% of FB voltage",
          "min": 105,
          "typ": 107,
          "max": 110,
          "conditions": "rising % of FB voltage",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good upper threshold falling",
          "symbol": "VPG-HIGH-DN",
          "kind": "tolerance",
          "unit": "% of FB voltage",
          "min": 103,
          "typ": 105,
          "max": 108,
          "conditions": "falling % of FB voltage",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good lower threshold rising",
          "symbol": "VPG-LOW-UP",
          "kind": "tolerance",
          "unit": "% of FB voltage",
          "min": 92,
          "typ": 94,
          "max": 97,
          "conditions": "rising % of FB voltage",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good lower threshold falling",
          "symbol": "VPG-LOW-DN",
          "kind": "tolerance",
          "unit": "% of FB voltage",
          "min": 90,
          "typ": 92,
          "max": 95,
          "conditions": "falling % of FB voltage",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good glitch filter delay",
          "symbol": "tPG",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 60,
          "max": 170,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good flag RDSON",
          "symbol": "RPG",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 76,
          "max": 150,
          "conditions": "VIN = 12 V, VEN = 4 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-good flag RDSON",
          "symbol": "RPG",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 35,
          "max": 60,
          "conditions": "VEN = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency C version, DDA package",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "MHz",
          "min": 1.8,
          "typ": 2.1,
          "max": 2.4,
          "conditions": "C version, DDA package",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "High-side MOSFET ON-resistance DDA package",
          "symbol": "RDS-ON-HS",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 95,
          "max": 160,
          "conditions": "DDA package",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Low-side MOSFET ON-resistance DDA package",
          "symbol": "RDS-ON-LS",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 66,
          "max": 110,
          "conditions": "DDA package",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Minimum switch on-time DDA package",
          "symbol": "tON-MIN",
          "kind": "timing",
          "unit": "ns",
          "min": 75,
          "typ": null,
          "max": 108,
          "conditions": "DDA package",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Minimum switch off-time DDA package",
          "symbol": "tOFF-MIN",
          "kind": "timing",
          "unit": "ns",
          "min": 50,
          "typ": null,
          "max": 85,
          "conditions": "DDA package",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Maximum switch on-time",
          "symbol": "tON-MAX",
          "kind": "timing",
          "unit": "µs",
          "min": 7,
          "typ": null,
          "max": 9,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Operating input voltage range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 3.8,
          "typ": null,
          "max": 36,
          "conditions": "VOUT = 3.3 V, IOUT = 0 A",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output voltage regulation for VOUT = 5 V",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1.5,
          "typ": null,
          "max": 2.5,
          "conditions": "VOUT = 5 V, VIN = 7 V to 36 V, IOUT = 0 A to max. load",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output voltage regulation for VOUT = 5 V",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1.5,
          "typ": null,
          "max": 1.5,
          "conditions": "VOUT = 5 V, VIN = 7 V to 36 V, IOUT = 1 A to max. load",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output voltage regulation for VOUT = 3.3 V",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1.5,
          "typ": null,
          "max": 2.5,
          "conditions": "VOUT = 3.3 V, VIN = 3.8 V to 36 V, IOUT = 0 A to max. load",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output voltage regulation for VOUT = 3.3 V",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1.5,
          "typ": null,
          "max": 1.5,
          "conditions": "VOUT = 3.3 V, VIN = 3.8 V to 36 V, IOUT = 1 A to max. load",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance DDA (HSOIC)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 42.9,
          "max": null,
          "conditions": "DDA 8 pins, 4-layer JEDEC board",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance DDA (HSOIC)",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
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