AP3127B025MR

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  "type": "component",
  "slug": "ap3127b025mr",
  "title": "AP3127B025MR",
  "brief": "Wuxi Chipown Micro electronics LED Drivers, SOT-23-6L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.1",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "AP3127B025MR",
    "manufacturer": "Wuxi Chipown Micro electronics",
    "package": "SOT-23-6L",
    "pin_count": 6,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0a2739fead404ac9abf821a661bc4d69.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "LX",
        "type": "output",
        "description": "Switching node. Drain of the internal 0.8 Ω N-MOS boost switch; connect to the boost inductor and the anode of the Schottky rectifier. Absolute max 28 V, peak current up to 1.3 A (1.0 A typical limit)."
      },
      {
        "number": "2",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground return (0 V reference for all internal circuitry and the low side of the internal power MOSFET)."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input for the current-regulation loop. Regulated to VFB = 0.25 V (0.235-0.265 V); tie to the top of the LED-current sense resistor (RLED = VFB / ILED, e.g. 12.5 Ω for 20 mA). Input leakage ±0.1 µA typ."
      },
      {
        "number": "4",
        "name": "CE",
        "type": "input",
        "description": "Chip enable / PWM dimming input. VIH ≥ 1.4 V enables the converter; VIL ≤ 0.5 V shuts it down (ISTB ≈ 1 µA). Driving CE with a 100 Hz-10 kHz PWM signal varies LED brightness via duty cycle. Input current ≤ 1 µA."
      },
      {
        "number": "5",
        "name": "OVP",
        "type": "input",
        "description": "Over-voltage protection sense input. Monitors the boost output; internal LX overvoltage threshold is 23-27 V (25 V typ). Typically connected to the boosted output rail (CL) to shut the switch off if the LED string opens."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input, 2.5 V to 6.0 V (absolute max 7 V). Bypass locally with a 1 µF ceramic capacitor to VSS. Powers the internal control, oscillator, and gate driver."
      }
    ],
    "provenance": {
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      "datasheet": {
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        "pages": 6,
        "sha256": "42471f568f433dc7",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
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        "zmin_mm": 0,
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        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
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        "checked": "2026-11-13",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Wuxi Chipown Micro electronics",
      "Package": "SOT-23-6L",
      "Category": "LED-drv",
      "Pins": "6"
    }
  },
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  "discovery_pitch": "AP3127B025MR (Wuxi Chipown Micro electronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
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  "visibility": "public",
  "updated_at": "2026-09-24T16:38:20.152Z",
  "description": "Wuxi Chipown Micro electronics LED Drivers, SOT-23-6L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}