main
Ray Set visibility: public 8552565 3d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "tc7660seoa",
  "title": "TC7660SEOA",
  "brief": "Microchip Tech DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "manufacturer": "Microchip Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/899a8299fd014d053e15869f3eb5c269.pdf",
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      "digikey": "TC7660SEOA-ND",
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        "description": "Switching frequency boost pin; connecting it to V+ raises the oscillator frequency from 10 kHz typical to 45 kHz typical."
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        "name": "CAP+",
        "type": "passive",
        "description": "Positive terminal of the charge pump (flying) capacitor; a low ESR capacitor is recommended and larger values lower the output resistance."
      },
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        "description": "Ground terminal, the input and output zero volt reference."
      },
      {
        "number": "4",
        "name": "CAP-",
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      {
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      },
      {
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        "description": "Low voltage pin; connect to GND for V+ below 3.5V, otherwise leave it open (floating)."
      },
      {
        "number": "7",
        "name": "OSC",
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        "description": "Oscillator control input; an external capacitor slows the oscillator, with the nominal frequency being 10 kHz."
      },
      {
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        "type": "power_in",
        "description": "Positive power supply input (1.5V to 12V operating range, 13V absolute maximum); bypass to GND with a low ESR capacitor."
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 24,
        "cost_usd": 0.1622,
        "at": "2026-10-23T06:13:14"
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        "pages": 24,
        "sha256": "3fcf786534a9ed95",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "viewers": {
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  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-8",
      "Category": "Power Supply Chip",
      "Pins": "8"
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    "characteristics": {
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          "conditions": "-40°C ≤ TA ≤ +85°C",
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        {
          "name": "Power Efficiency",
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          "unit": "%",
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          "typ": 98,
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          "source": "datasheet"
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        {
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          "kind": "electrical",
          "unit": "%",
          "min": 95,
          "typ": 98,
          "max": null,
          "conditions": "TMIN ≤ TA ≤ TMAX; Boost Pin Open",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage Conversion Efficiency",
          "symbol": "VOUTEFF",
          "kind": "electrical",
          "unit": "%",
          "min": 99,
          "typ": 99.9,
          "max": null,
          "conditions": "RL = ∞",
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        },
        {
          "name": "Operating Temperature Range (E suffix)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "E suffix",
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Supply Voltage",
          "symbol": "",
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          "unit": "V",
          "min": null,
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          "max": 13,
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        },
        {
          "name": "Current into LV",
          "symbol": "",
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          "unit": "µA",
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          "max": 20,
          "conditions": "V+ > 3.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10s)",
          "symbol": "",
          "kind": "absolute_maximum",
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          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "",
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        {
          "name": "Thermal Resistance, 8LD SOIC",
          "symbol": "θJA",
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          "unit": "°C/W",
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          "typ": 148.5,
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          "conditions": "",
          "source_page": 4,
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        },
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          "unit": "kHz",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "Pin 7 open, Pin 1 open or GND",
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        {
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          "conditions": "Boost Pin = V+",
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        {
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          "max": null,
          "conditions": "Boost Pin = V+",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Oscillator Impedance",
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          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "V+ = 2V",
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          "conditions": "V+ = 5V",
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      ]
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  "discovery_pitch": "TC7660SEOA (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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