LD7750RGR

{
  "slug": "ld7750rgr",
  "version": "0.1.0",
  "type": "component",
  "description": "Leadtrend Tech AC-DC Controllers And Regulators, SOP-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ld7750rgr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ld7750rgr.kicad_sym",
    "ld7750rgr.kicad_mod",
    "ld7750rgr.glb",
    "ld7750rgr.step",
    "ld7750rgr.lbr",
    "docs/hero.png",
    "docs/ld7750rgr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ld7750rgr-hero.glb",
    "ld7750rgr-hero.overlay.json",
    "ld7750rgr-etched.glb"
  ],
  "component": {
    "mpn": "LD7750RGR",
    "manufacturer": "Leadtrend Tech",
    "package": "SOP-7",
    "pin_count": 7,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903247344521216",
    "parts": {
      "symbol": "ld7750rgr.kicad_sym",
      "footprint": "ld7750rgr.kicad_mod",
      "model_3d": "ld7750rgr-hero.glb",
      "model_3d_plain": "ld7750rgr-etched.glb",
      "model_3d_step": "ld7750rgr-etched.step",
      "model_3d_step_plain": "ld7750rgr.step",
      "lbr": "ld7750rgr.lbr"
    },
    "distributor_links": {
      "lcsc": "C648777"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T19:12:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OTP",
        "type": "input",
        "description": "Pulling this pin below 0.95V shuts the controller down into latch mode until AC power recycles; a NTC to ground provides over-temperature protection, and leaving it floating disables the latch protection."
      },
      {
        "number": "2",
        "name": "COMP",
        "type": "input",
        "description": "Voltage feedback pin that receives the photo-coupler feedback to close the regulation loop, and pulling it below 1.8V turns the controller off."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current sense pin for sensing the MOSFET current, with a maximum input voltage (Vcs_off) of 0.80 to 0.90V (0.85V typical) and 250ns leading-edge blanking."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the controller."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "output",
        "description": "Gate drive output that drives the external power MOSFET, with a driving capability of 500mA."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin, with UVLO turn-on at 15 to 17V (16V typical) and turn-off at 9 to 11V (10V typical), and Vcc OVP at 25 to 27V (26V typical)."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "power_in",
        "description": "High-voltage startup pin connected to the positive terminal of the bulk capacitor (500V rating), which is turned off once Vcc reaches UVLO(on) to reduce startup power loss."
      }
    ],
    "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: The ordering table maps 'LD7750R GR' to SOP-7; the MPN suffix 'RGR' was read as the GR (SOP-7, tape ; The SOP-7 variant has no pin 7. The SOP-7 column of the pin description table lists HV as pin 8 and ; KiCad class for HV was a judgment call: it is a high-voltage startup input connected to the bulk cap"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0639,
        "at": "2026-10-18T19:10:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903247344521216",
        "pages": 19,
        "sha256": "e33104d0046eba12",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 7,
        "described": 7,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ld7750rgr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.4,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4c9435ffd3683a4ae45655e397c25900eda4f6782a526780f4f7b7b99a32dca7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ld7750rgr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.4,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51b4ff18f44751e4726f21f198dc0475b1757b19a76d17be424728fe4f80db04",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}