main
Ray Set visibility: public 3c35ccb 16d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "rt5788bgj8f",
  "title": "RT5788BGJ8F",
  "brief": "Richtek Tech DC-DC Converters, TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "rt5788bgj8f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "RT5788BGJ8F",
    "manufacturer": "Richtek Tech",
    "package": "TSOT-23-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600683548529737728",
    "parts": {
      "symbol": "rt5788bgj8f.kicad_sym",
      "footprint": "rt5788bgj8f.kicad_mod",
      "model_3d": "rt5788bgj8f-hero.glb",
      "model_3d_plain": "rt5788bgj8f-etched.glb",
      "model_3d_step": "rt5788bgj8f-etched.step",
      "model_3d_step_plain": "rt5788bgj8f.step",
      "lbr": "rt5788bgj8f.lbr"
    },
    "distributor_links": {
      "lcsc": "C3194337",
      "digikey": "RT5788BGJ8FTR-ND",
      "mouser": "835-RT5788BGJ8F"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T07:16:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "RT5788BGJ8FTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "835-RT5788BGJ8F",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power-good indication output that is activated after soft-start is finished."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input with a 2.5V to 6V input voltage range; a bypass capacitor typically greater than 10μF should be connected between this pin and PGND, placed as close to the IC as possible."
      },
      {
        "number": "3",
        "name": "LX",
        "type": "output",
        "description": "Switch node between the internal switch and the synchronous rectifier, with the output LC filter connected from this pin to the output load."
      },
      {
        "number": "4",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground, connected to analog ground, that must be soldered to a large PCB copper area for maximum power dissipation."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "input",
        "description": "Output voltage sense input used to monitor and adjust the output voltage to enhance load transient regulation."
      },
      {
        "number": "6",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground providing the return path for the control circuitry and internal reference, to be connected to a clean inner GND point with a separate trace."
      },
      {
        "number": "7",
        "name": "FB",
        "type": "input",
        "description": "Feedback voltage input connected to the midpoint of the external resistive divider; the device regulates FB at a typical feedback reference of 0.6V."
      },
      {
        "number": "8",
        "name": "EN",
        "type": "input",
        "description": "Enable control input where a logic-high enables the converter and a logic-low forces the device into shutdown mode."
      }
    ],
    "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 extracted text reads 'typically of greater than 10F'; the micro sign appears to have been lost i; The datasheet gives no KiCad ERC class for PGOOD (open-drain) or LX (switch node); 'output' was chos; Pin numbers come from the Functional Pin Description table on page 2 and match the TSOT-23-8 (FC) pi"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0265,
        "at": "2026-10-17T07:14:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600683548529737728",
        "pages": 20,
        "sha256": "db05ebfb06e71fd7",
        "source_tier": "lcsc"
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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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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dc644a91883054d8f75e38542e63c2050dc8f2e8b7f12e1c57dcd93245fbd473",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "a16a8ecc4297bc9763a70a9b73ac0b31186786dd1e0984406f8fa332a9d55d07",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "TSOT-23-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "db05ebfb06e71fd733ae9c5b1a1e4be594cef1edb7a2598ac84123e99d874dc3",
      "rows": [
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          "name": "Input Operating Voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Under-Voltage Lockout Threshold",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 2.15,
          "typ": 2.3,
          "max": 2.45,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0,
          "max": 1,
          "conditions": "VEN = 0V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Enable Threshold Voltage (rising)",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": null,
          "max": null,
          "conditions": "VEN rising",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Enable Threshold Voltage (falling)",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VEN falling",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.591,
          "typ": 0.6,
          "max": 0.609,
          "conditions": "2.5V ≤ VIN ≤ 6V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Low-Side Switch Valley Current Limit",
          "symbol": "ILIM_L",
          "kind": "electrical",
          "unit": "A",
          "min": 4,
          "typ": 5.5,
          "max": 7.3,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Switching Frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 1300,
          "typ": 1500,
          "max": 1700,
          "conditions": "VOUT = 1.2V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Fixed Soft-Start Time",
          "symbol": "tSS",
          "kind": "electrical",
          "unit": "ms",
          "min": 1,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power Good Sink Current Capability",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IPGOOD sinks 1mA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "LX Pin Switch Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as (VIN + 0.3V)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "LX Pin Switch Voltage (<10ns)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": 8.5,
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          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Other Pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as (VIN + 0.3V)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
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          "source_page": 6,
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        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 sec.",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
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          "conditions": "",
          "source_page": 6,
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        {
          "name": "Junction-to-ambient thermal resistance (JEDEC standard)",
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          "min": null,
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        {
          "name": "Junction-to-case (top) thermal resistance",
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          "unit": "°C/W",
          "min": null,
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          "source_page": 6,
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        {
          "name": "Junction-to-case (bottom) thermal resistance",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 4.6,
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          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance (specific EVB)",
          "symbol": "θJA(EVB)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 73.9,
          "max": null,
          "conditions": "specific EVB",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-top characterization parameter",
          "symbol": "ΨJC(Top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 13,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ΨJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 53.8,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
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