HT2451ARTZ

{
  "slug": "ht2451artz",
  "version": "0.1.0",
  "type": "component",
  "description": "HTCSEMI DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ht2451artz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ht2451artz.kicad_sym",
    "ht2451artz.kicad_mod",
    "ht2451artz.glb",
    "ht2451artz.step",
    "ht2451artz.lbr",
    "docs/hero.png",
    "docs/ht2451artz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ht2451artz-hero.glb",
    "ht2451artz-hero.overlay.json"
  ],
  "component": {
    "mpn": "HT2451ARTZ",
    "manufacturer": "HTCSEMI",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835987799994368",
    "parts": {
      "symbol": "ht2451artz.kicad_sym",
      "footprint": "ht2451artz.kicad_mod",
      "model_3d": "ht2451artz-hero.glb",
      "model_3d_plain": "ht2451artz.glb",
      "model_3d_step": "ht2451artz-etched.step",
      "model_3d_step_plain": "ht2451artz.step",
      "lbr": "ht2451artz.lbr"
    },
    "distributor_links": {
      "lcsc": "C5158911"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T13:47:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "power_out",
        "description": "Bootstrap pin and positive supply for the internal floating high-side MOSFET driver; a bypass capacitor is connected between this pin and SW, and the bootstrap capacitor is held at about 5 V with the floating driver UVLO at about 2.4 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, to be connected as close as possible to the output capacitor and kept away from the high-current switching path."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the error amplifier; an external divider from output to ground is compared with the internal +0.8 V reference (Vfb 0.778 V to 0.810 V for 4.0 V < Vin < 36 V) to set the regulated output."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable input: pulling it below the specified threshold shuts the chip down, pulling it above the threshold enables operation, and leaving it floating disables the chip (EN high threshold 1.4 V min, 1.55 V typ, 1.7 V max)."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input supplying all internal control circuits including the power switch, requiring a decoupling capacitor to ground to reduce switching spikes; operating input range is 3.3 V to 36 V."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "High-side switch output; a low-VF Schottky diode to ground should be placed close to this pin to reduce switching spikes."
      }
    ],
    "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: Pinout taken from the pin-function table on page 4 (SOT23-6L, the only package with a T suffix liste; BST pin type (power_out) is inferred from its function as a bootstrap supply output for the floating; Datasheet gives EN hysteresis as 0.3 V in the electrical table but 0.4 V in the operating-principle "
        ],
        "pages_sent": 9,
        "cost_usd": 0.0406,
        "at": "2026-10-09T13:45:06"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835987799994368",
        "pages": 9,
        "sha256": "4dbbf1ffc0150b1b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ht2451artz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht2451artz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0b826ef7e98a13f55a60f8c2a33fc83757c4a1560be28ac966b59bfb2d72b9a9",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}