ap3125aktr-g1

{
  "slug": "ap3125aktr-g1",
  "version": "0.1.1",
  "type": "component",
  "description": "Diodes Incorporated AC-DC Controllers and Regulators, SOT-26. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "pmic",
    "ap3125aktr-g1"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ap3125aktr-g1.kicad_sym",
    "ap3125aktr-g1.kicad_mod",
    "ap3125aktr-g1.glb",
    "ap3125aktr-g1.step",
    "ap3125aktr-g1.lbr",
    "docs/hero.png",
    "docs/ap3125aktr-g1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ap3125aktr-g1-etched.step",
    "ap3125aktr-g1-etched.glb",
    "ap3125aktr-g1-hero.glb",
    "ap3125aktr-g1-hero.overlay.json"
  ],
  "visibility": "public",
  "author": {
    "name": "Ray"
  },
  "component": {
    "mpn": "AP3125AKTR-G1",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-26",
    "pin_count": 6,
    "category": "AC-DC Controllers and Regulators",
    "datasheet": "https://www.diodes.com/assets/Datasheets/AP3125AKTR-G1.pdf",
    "parts": {
      "symbol": "ap3125aktr-g1.kicad_sym",
      "footprint": "ap3125aktr-g1.kicad_mod",
      "model_3d": "ap3125aktr-g1-hero.glb",
      "model_3d_plain": "ap3125aktr-g1.glb",
      "model_3d_step": "ap3125aktr-g1-etched.step",
      "model_3d_step_plain": "ap3125aktr-g1.step",
      "lbr": "ap3125aktr-g1.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Signal ground. Current return for driver and control circuits."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback input directly connected to opto-coupler. Input impedance ~15kΩ, sources ~0.27mA when pulled low; controls peak inductor current via IPK=(VFB-0.8)/(3·RS). VFB>4.5V for ~70ms triggers OLP hiccup; VFB<1.55V stops drive pulses (zero-duty threshold). Green-mode threshold ~2.1V."
      },
      {
        "number": "3",
        "name": "CTRL",
        "type": "bidirectional",
        "description": "Latch trigger pin. Sources ~100μA; low-threshold trigger 1V (typ) and high-threshold trigger 3V (typ) invoke latch protection. Leave open if unused; connect an NTC thermistor to GND for external OTP protection. Max sourcing current must be limited below 5mA."
      },
      {
        "number": "4",
        "name": "SENSE",
        "type": "input",
        "description": "Current sense input for primary MOSFET source current. Max sense voltage 0.95V (typ) with VFB=4.5V; FOCP threshold 1.7V (typ) with ~100ns delay; internal 250ns leading-edge blanking. Requires small RC filter/series resistor to protect against turn-off undershoot beyond -0.3V."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage of driver and control circuits. Recommended 10-25V; UVLO(on)=15.8V typ, UVLO(off)=7.6V typ, VCC maintain ~9.1V, VCC OVP ~28.5V, internal clamp ~34V, absolute max 30V. Startup current ~1μA typ; operating current ~0.7-1.2mA."
      },
      {
        "number": "6",
        "name": "GATE",
        "type": "output",
        "description": "Gate driver output for external power MOSFET. Output clamping voltage ~13V (typ), rise time ~150ns and fall time ~50ns into 1nF at VCC=13V, max output current 350mA. Max duty cycle 75% typ."
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "distributor_links": {
      "lcsc": "C460357",
      "digikey": "31-AP3125AKTR-G1TR-ND",
      "mouser": "621-AP3125AKTR-G1"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T18:52:07Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": "31-AP3125AKTR-G1TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "621-AP3125AKTR-G1",
        "status": "found"
      }
    },
    "models_3d": [
      {
        "file": "ap3125aktr-g1.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ap3125aktr-g1-etched.step",
        "role": "eda",
        "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": "8c233e1100374d135b25ddd4d8f4be6e416f95877faf9fa7adf25455a084180c",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "org": "adom"
}