main
Ray Set visibility: public 06009bd 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "sd3038b",
  "title": "SD3038B",
  "brief": "SHOUDING LED Drivers, SOT-23-6. 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",
    "led drivers",
    "sd3038b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SD3038B",
    "manufacturer": "SHOUDING",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913104701177856",
    "parts": {
      "symbol": "sd3038b.kicad_sym",
      "footprint": "sd3038b.kicad_mod",
      "model_3d": "sd3038b-hero.glb",
      "model_3d_plain": "sd3038b-etched.glb",
      "model_3d_step": "sd3038b-etched.step",
      "model_3d_step_plain": "sd3038b.step",
      "lbr": "sd3038b.lbr"
    },
    "distributor_links": {
      "lcsc": "C521339"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:08:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EXT",
        "type": "output",
        "description": "Drives the gate of the external NMOS switch, which allows the converter to supply high-power loads."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection for the device."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply input with internal overvoltage protection that shuts down the oscillator when VDD exceeds 5.8V (VOVP 5.6-6.2V), and the datasheet lists input voltage 0.8-5.5V."
      },
      {
        "number": "4",
        "name": "CE",
        "type": "input",
        "description": "Enable pin where the chip runs above 0.75V and enters shutdown below 0.75V, and it can accept a 100Hz-8kHz rectangular signal of about 3-4V amplitude for PWM LED dimming."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Constant-current sense input that uses the internal 46mV reference (43.7-48.3mV) to set the LED current as VFB/Rf."
      },
      {
        "number": "6",
        "name": "IS",
        "type": "input",
        "description": "Current-limit sense input that limits the peak input current using the internal 50mV reference (47-53mV), with the limit set as VIS/RS."
      }
    ],
    "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 datasheet only gives the SOT23-6L package (page 4 pin table, pins 1–6 as EXT, GND, VDD, CE, FB, "
        ],
        "pages_sent": 14,
        "cost_usd": 0.0431,
        "at": "2026-10-19T07:08:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913104701177856",
        "pages": 14,
        "sha256": "f0a5065702bae191",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sd3038b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sd3038b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2002d8fbcfee0b5b14ca2e0b70793f156a657c0d34beaddf164b072cae5d6579",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SHOUDING",
      "Package": "SOT-23-6",
      "Category": "LED Drivers",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f0a5065702bae191703692dc32a16488ca39c36b5a91b7c916f4a74673351f1a",
      "rows": [
        {
          "name": "Voltage on VDD, CE, FB, IS, EXT (absolute maximum)",
          "symbol": "VDD, CE, FB, IS, EXT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -35,
          "typ": null,
          "max": 160,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10s",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": 5.5,
          "conditions": "方案 3 电路",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold voltage",
          "symbol": "VHOLD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.35,
          "conditions": "方案 3 电路 对应负载电流 10mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Start-up voltage",
          "symbol": "VSTART",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "方案 3 电路",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD overvoltage protection",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "V",
          "min": 5.6,
          "typ": 5.8,
          "max": 6.2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Feedback voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "mV",
          "min": 43.7,
          "typ": 46,
          "max": 48.3,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Peak current sense voltage",
          "symbol": "VIS",
          "kind": "electrical",
          "unit": "mV",
          "min": 47,
          "typ": 50,
          "max": 53,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CE switching voltage",
          "symbol": "VCE",
          "kind": "electrical",
          "unit": "V",
          "min": 0.55,
          "typ": 0.75,
          "max": 0.95,
          "conditions": "图 6 电路,VIN=2.5V,FB 接地",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 76,
          "conditions": "图 6 电路,Vin=CE=5.2V,VFB=0.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current (CE input low)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "关断模式(CE 输入低电平)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating frequency",
          "symbol": "FOSC",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 700,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Off time in current-limit mode",
          "symbol": "toff",
          "kind": "electrical",
          "unit": "nS",
          "min": null,
          "typ": 450,
          "max": null,
          "conditions": "限流模式",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EXT pull-up current",
          "symbol": "IEXTP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 53,
          "max": null,
          "conditions": "VDD=2V,VOH=1.6V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EXT pull-down current",
          "symbol": "IEXTN",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "VDD=2V,VOL=0.4V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Over-temperature protection",
          "symbol": "TOV",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Efficiency",
          "symbol": "η",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "方案 3 电路",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sd3038b"
  ],
  "discovery_pitch": "SD3038B (SHOUDING) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "sd3038b.kicad_sym",
    "sd3038b.kicad_mod",
    "sd3038b.glb",
    "sd3038b.step",
    "sd3038b.lbr",
    "docs/hero.png",
    "docs/sd3038b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sd3038b-hero.glb",
    "sd3038b-hero.overlay.json",
    "sd3038b-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}