LMC7660M

{
  "schema_version": 1,
  "type": "component",
  "slug": "lmc7660m",
  "title": "LMC7660M",
  "brief": "HGSEMI DC-DC Converters, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "lmc7660m"
  ],
  "component": {
    "mpn": "LMC7660M",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a44671132b5b259faa9fedd9d6198faa.pdf",
    "parts": {
      "symbol": "lmc7660m.kicad_sym",
      "footprint": "lmc7660m.kicad_mod",
      "model_3d": "lmc7660m-etched.glb",
      "model_3d_plain": "lmc7660m.glb",
      "model_3d_step": "lmc7660m-etched.step",
      "model_3d_step_plain": "lmc7660m.step",
      "lbr": "lmc7660m.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating."
      },
      {
        "number": "2",
        "name": "CAP+",
        "type": "passive",
        "description": "Positive terminal of the external charge-pump 'flying' capacitor (typ. 10 uF). Connects internally to the charge-pump switches that transfer charge from V+ to VOUT."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return. 0 V reference for the input supply and the internal circuitry."
      },
      {
        "number": "4",
        "name": "CAP-",
        "type": "passive",
        "description": "Negative terminal of the external charge-pump 'flying' capacitor (typ. 10 uF). Switched between GND and VOUT by the internal MOS switches during the pump cycle."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated inverted output voltage (nominally -V+). Connect the external reservoir capacitor (typ. 10 uF) from VOUT to GND. Output source resistance is typically 55 ohm at IOUT = 20 mA."
      },
      {
        "number": "6",
        "name": "LV",
        "type": "input",
        "description": "Low-voltage operation control. Tie to GND to bypass the internal series regulator when V+ is between 1.5V and 3.5V. Leave floating (open) for V+ = 3.5V to 10V to prevent latchup. Max current into LV is 20 uA for V+ > 3.5V."
      },
      {
        "number": "7",
        "name": "OSC",
        "type": "bidirectional",
        "description": "Oscillator terminal. Internal RC oscillator runs at ~10 kHz nominal at V+ = 5V. An external capacitor to GND lowers the frequency; alternatively this pin can be driven by an external clock. Oscillator impedance is ~100 kohm at V+ = 5V (~1 Mohm at V+ = 2V)."
      },
      {
        "number": "8",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply input. Operating range 1.5V to 10V; absolute maximum +10.5V. Supply current is typically 170 uA (500 uA max) with no load."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a44671132b5b259faa9fedd9d6198faa.pdf",
        "pages": 9,
        "sha256": "fd1d1dedd842535a",
        "source_tier": "lcsc"
      },
      "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "lmc7660m.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lmc7660m-etched.step",
        "role": "eda",
        "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": "ae877acca7d6d101fd07b9cbd285cf6607ab3ad785e30fda13036857d77bc5be",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lmc7660m"
  ],
  "discovery_pitch": "LMC7660M (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lmc7660m.kicad_sym",
    "lmc7660m.kicad_mod",
    "lmc7660m.glb",
    "lmc7660m.step",
    "lmc7660m-etched.step",
    "lmc7660m.lbr",
    "docs/hero.png",
    "docs/lmc7660m-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "LMC7660M/TR",
      "kind": "packaging"
    },
    {
      "mpn": "LMC7660N",
      "kind": "unknown"
    },
    {
      "mpn": "LMC7660MM/TR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T17:16:16.858Z"
}