LD7535BL

{
  "slug": "ld7535bl",
  "version": "0.1.0",
  "type": "component",
  "description": "Leadtrend Tech AC-DC Controllers And Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ld7535bl",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ld7535bl.kicad_sym",
    "ld7535bl.kicad_mod",
    "ld7535bl.glb",
    "ld7535bl.step",
    "ld7535bl.lbr",
    "docs/hero.png",
    "docs/ld7535bl-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ld7535bl-hero.glb",
    "ld7535bl-hero.overlay.json",
    "ld7535bl-etched.glb"
  ],
  "component": {
    "mpn": "LD7535BL",
    "manufacturer": "Leadtrend Tech",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881241508614144",
    "parts": {
      "symbol": "ld7535bl.kicad_sym",
      "footprint": "ld7535bl.kicad_mod",
      "model_3d": "ld7535bl-hero.glb",
      "model_3d_plain": "ld7535bl-etched.glb",
      "model_3d_step": "ld7535bl-etched.step",
      "model_3d_step_plain": "ld7535bl.step",
      "lbr": "ld7535bl.lbr"
    },
    "distributor_links": {
      "lcsc": "C114262"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:40:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the controller (the datasheet lists only 'Ground' as its function)."
      },
      {
        "number": "2",
        "name": "COMP",
        "type": "input",
        "description": "Voltage feedback pin, same as the COMP pin in UC384X, driven from a photo-coupler to close the control loop; pulling it below 1.2V turns the gate output off, and the OLP trip level is 5.0V."
      },
      {
        "number": "3",
        "name": "RT",
        "type": "input",
        "description": "Sets the switching frequency through a resistor to ground, with f_SW = 65.0 × (100 kΩ / RT) kHz and a recommended range of 50 kHz to 130 kHz; the gate output turns off if RT is shorted to ground or left floating."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current sense input that senses the MOSFET current for peak current mode control and pulse-by-pulse limit, with a maximum threshold of 0.85V and 350 ns leading-edge blanking; the gate output turns off if CS is left floating."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin with a recommended range of 11V to 25V for the LD7535 (absolute maximum 30V), UVLO thresholds of 16.0V on and 10.0V off, and OVP at 28.0V ±1.5V."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Gate drive output that drives the external power MOSFET with a typical 300mA drive capability, with the maximum duty cycle limited to 75%."
      }
    ],
    "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: Package hint says SOT-23-6, but the datasheet only gives SOT-26 for this part. The 6-lead pinout is ; The SOT-26 pin configuration figure on page 2 has garbled text extraction, so pin positions were tak; The datasheet covers both LD7535 BL and LD7535A BL in SOT-26 with the same pin table; the OVP and re"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0652,
        "at": "2026-10-18T13:38:47"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881241508614144",
        "pages": 19,
        "sha256": "c6cca6fb87016e6c",
        "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": "ld7535bl.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ld7535bl-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e5879c338587f24640fb8c0b51edc7c6dc2f02eb21528bf0eec439c326fa656f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}