LM63635DQPWPRQ1

{
  "slug": "lm63635dqpwprq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "lm63635dqpwprq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm63635dqpwprq1.kicad_sym",
    "lm63635dqpwprq1.kicad_mod",
    "lm63635dqpwprq1.glb",
    "lm63635dqpwprq1.step",
    "lm63635dqpwprq1.lbr",
    "docs/hero.png",
    "docs/lm63635dqpwprq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm63635dqpwprq1-hero.glb",
    "lm63635dqpwprq1-hero.overlay.json",
    "lm63635dqpwprq1-etched.glb"
  ],
  "component": {
    "mpn": "LM63635DQPWPRQ1",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm63635dqpwprq1.pdf",
    "parts": {
      "symbol": "lm63635dqpwprq1.kicad_sym",
      "footprint": "lm63635dqpwprq1.kicad_mod",
      "model_3d": "lm63635dqpwprq1-hero.glb",
      "model_3d_plain": "lm63635dqpwprq1-etched.glb",
      "model_3d_step": "lm63635dqpwprq1-etched.step",
      "model_3d_step_plain": "lm63635dqpwprq1.step",
      "lbr": "lm63635dqpwprq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C1857546",
      "digikey": "296-LM63635DQPWPRQ1TR-ND",
      "mouser": "595-LM63635DQPWPRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:57:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-LM63635DQPWPRQ1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM63635DQPWPRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "power_out",
        "description": "Regulator switch node, connected to the power inductor."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "power_out",
        "description": "Regulator switch node, connected to the power inductor (second SW pin, same net as pin 1)."
      },
      {
        "number": "3",
        "name": "CBOOT",
        "type": "passive",
        "description": "Bootstrap supply voltage for the internal high-side driver; connect a 220 nF high-quality capacitor between this pin and SW."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal 5 V LDO output powering the internal control circuitry; do not load externally, connect a 1 µF high-quality capacitor between VCC and PGND, usable as logic supply for the regulator functions."
      },
      {
        "number": "5",
        "name": "RT",
        "type": "input",
        "description": "Frequency programming input: connect to VCC for 400 kHz, to AGND for 2.1 MHz, or to an RT timing resistor to AGND; must not be left floating."
      },
      {
        "number": "6",
        "name": "VSEL",
        "type": "input",
        "description": "Output voltage selection input: VCC for 5 V, AGND for 3.3 V, or 10 kΩ to AGND for adjustable output; must not be left floating."
      },
      {
        "number": "7",
        "name": "SYNC/MODE",
        "type": "input",
        "description": "Mode selection and synchronization input: VCC for FPWM, AGND for auto mode, or an external synchronization clock."
      },
      {
        "number": "8",
        "name": "RESET",
        "type": "output",
        "description": "Open-drain power-good flag output (high = power good, low = power bad), pulled up through a current-limiting resistor to a suitable supply; pulled low when EN is low; may be left open if unused."
      },
      {
        "number": "9",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the regulator: connect to the output capacitor for fixed 5 V or 3.3 V, or to the feedback divider tap for adjustable output; do not float or ground."
      },
      {
        "number": "10",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground and ground reference for internal reference and logic; all electrical parameters are measured to this pin; connect to system ground on the PCB."
      },
      {
        "number": "11",
        "name": "EN",
        "type": "input",
        "description": "Regulator enable input (high = on, low = off); can be connected directly to VIN; must not be left floating."
      },
      {
        "number": "12",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply to the regulator (3.5 V to 36 V recommended); connect a high-quality bypass capacitor directly between this pin and PGND."
      },
      {
        "number": "13",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply to the regulator (second VIN pin, same net as pin 12); bypass directly to PGND."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection to the device circuitry."
      },
      {
        "number": "15",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground terminal; connect to system ground and AGND, with short wide traces to the bypass capacitors."
      },
      {
        "number": "16",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground terminal (second PGND pin, same net as pin 15); connect to system ground and AGND."
      },
      {
        "number": "17",
        "name": "DAP",
        "type": "power_in",
        "description": "Exposed PowerPAD providing electrical ground and heat-sink connection; solder directly to the system ground plane."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-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 text is the LM63615-Q1/LM63625-Q1 document (SNVSB55 / ZHCSKE1G). LM63635DQPWPRQ1 appea; The datasheet gives pin types only as A/P/G letters. The KiCad ERC types were inferred: SW as power_; The pin table prints the exposed pad as pin 17, and the package drawing shows it as (17)."
        ],
        "pages_sent": 40,
        "cost_usd": 0.3585,
        "at": "2026-10-27T00:56:21"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm63635dqpwprq1.pdf",
        "pages": 59,
        "sha256": "7d26ece346632163",
        "source_tier": "mfr"
      },
      "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": "lm63635dqpwprq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm63635dqpwprq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "928bcfeaf505af3e8c9396471fc81106b583bf480d9cff033ceea89dae6ecfb2",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}