XL7660

{
  "schema_version": 1,
  "type": "component",
  "slug": "xl7660",
  "title": "XL7660",
  "brief": "XINLUDA DC-DC Converters, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "xl7660"
  ],
  "component": {
    "mpn": "XL7660",
    "manufacturer": "XINLUDA",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/091ad7187256c9195b351b850160482d.pdf",
    "parts": {
      "symbol": "xl7660.kicad_sym",
      "footprint": "xl7660.kicad_mod",
      "model_3d": "xl7660-etched.glb",
      "model_3d_plain": "xl7660.glb",
      "model_3d_step": "xl7660-etched.step",
      "model_3d_step_plain": "xl7660.step",
      "lbr": "xl7660.lbr"
    },
    "distributor_links": {
      "lcsc": "C521199"
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOST",
        "type": "input",
        "description": "Frequency Boost input. Tying BOOST to V+ bypasses the internal divide-by-2 counter, raising the oscillator switching frequency (typ. 15 kHz vs 5 kHz at V+ = 5V) to reduce output impedance when smaller capacitors are used. Leave open for normal (divided) operation."
      },
      {
        "number": "2",
        "name": "CAP+",
        "type": "passive",
        "description": "Positive terminal of the external charge-pump 'flying' capacitor C1 (typ. 10 µF electrolytic). Internally driven by the P-channel switch S1 and N-channel switch S2 that alternately connect this node to V+ and GND during each oscillator half-cycle."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / 0 V reference. Substrate return for the internal switches S2 and S3 and for the external charge-pump / reservoir capacitors."
      },
      {
        "number": "4",
        "name": "CAP-",
        "type": "passive",
        "description": "Negative terminal of the external charge-pump 'flying' capacitor C1. During the transfer half-cycle the internal N-channel switches S3/S4 shift C1's charge onto the reservoir capacitor C2 at VOUT. An external Schottky diode from VOUT to CAP- may be added to guarantee latch-up free operation in some applications."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Negative charge-pump output. Delivers VOUT ≈ -V+ into an external reservoir capacitor C2 (typ. 10 µF). Output source resistance is typ. 55 Ω at V+ = 5V, IOUT = 20 mA. Can also be reconfigured externally as a voltage doubler output."
      },
      {
        "number": "6",
        "name": "LV",
        "type": "input",
        "description": "Low-Voltage operation select. Tie LV to GND for supply voltages of 2.0 V to 3.5 V to bypass the internal series regulator and improve low-voltage performance. For V+ from 3.5 V to 10 V leave LV floating (open) to keep the regulator engaged and prevent latch-up. Absolute input range: -0.3 V to V+ + 0.3 V; ILV max 25 µA."
      },
      {
        "number": "7",
        "name": "OSC",
        "type": "bidirectional",
        "description": "Oscillator node. Free-running with a nominal 10 kHz frequency at V+ = 5 V when left open (internal ~5 pF plus stray). Adding an external capacitor COSC to GND lowers fOSC; the pin may also be over-driven by an external clock. Input range: (V+ - 5.5 V) to (V+ + 0.3 V) when V+ > 5.5 V."
      },
      {
        "number": "8",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply input, 2 V to 10 V operating range (absolute max +10.5 V). Powers the oscillator, level translator, internal regulator and the four MOS charge-pump switches. Typical quiescent supply current is 40 µA (no load) at 5 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/091ad7187256c9195b351b850160482d.pdf",
        "pages": 17,
        "sha256": "80e0bc7d028cdd92",
        "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": "xl7660.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": "xl7660-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eee9a362f72bde414f6f87190551208f38e22fd71a9e7c9ca6c5d34fa486c632",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "XINLUDA",
      "Package": "SOIC-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "xl7660"
  ],
  "discovery_pitch": "XL7660 (XINLUDA) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xl7660.kicad_sym",
    "xl7660.kicad_mod",
    "xl7660.glb",
    "xl7660.step",
    "xl7660-etched.step",
    "xl7660.lbr",
    "docs/hero.png",
    "docs/xl7660-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T14:37:19.551Z"
}