DP2291

{
  "schema_version": 1,
  "type": "component",
  "slug": "dp2291",
  "title": "DP2291",
  "brief": "Shenzhen Developer Microelec AC-DC Controllers & Regulators, 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": [
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    "power supply chip",
    "dp2291",
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  "component": {
    "mpn": "DP2291",
    "manufacturer": "Shenzhen Developer Microelec",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Supply Chip",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226438600630272",
    "parts": {
      "symbol": "dp2291.kicad_sym",
      "footprint": "dp2291.kicad_mod",
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      "model_3d_plain": "dp2291.glb",
      "model_3d_step": "dp2291-etched.step",
      "model_3d_step_plain": "dp2291.step",
      "lbr": "dp2291.lbr"
    },
    "distributor_links": {
      "lcsc": "C2967752"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference of the IC."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback input for loop regulation via photo-coupler; PWM duty cycle determined by this pin voltage and current sense signal; voltage range -0.3 to 7 V, open voltage 4.5 to 6 V, input impedance 25 kOhm."
      },
      {
        "number": "3",
        "name": "SEL",
        "type": "input",
        "description": "Mode selection input; connect external capacitor between SEL and GND for CC/CV mode or leave floating for CV mode only; voltage range -0.3 to 7 V."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current sense input pin with 250 ns leading edge blanking; current limiting threshold 0.97 to 1.03 V; voltage range -0.3 to 7 V."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; operating range 10.5 to 28.5 V, UVLO exit 21 V typical, UVLO enter 9.3 V typical, OVP threshold 31.5 V typical."
      },
      {
        "number": "6",
        "name": "GATE",
        "type": "output",
        "description": "Totem-pole gate driver output to drive external MOSFET; 400 mA capability, output low 1 V, output high 7.5 V at 20 mA, clamp voltage 16 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 14,
        "cost_usd": 0.1129,
        "at": "2026-09-22T11:47:50"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226438600630272",
        "pages": 14,
        "sha256": "5aa7724af457f485",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "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": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "sha256": "3724627d1066a2c3ec8a303078a1aa25ef53f10d0b67eeae8c580badb967f3e2",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Developer Microelec",
      "Package": "SOT-23-6",
      "Category": "Power Supply Chip",
      "Pins": "6"
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
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  "discovery_pitch": "DP2291 (Shenzhen Developer Microelec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "dp2291.kicad_sym",
    "dp2291.kicad_mod",
    "dp2291.glb",
    "dp2291.step",
    "dp2291.lbr",
    "docs/hero.png",
    "docs/dp2291-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T19:53:10.149Z"
}