SK6019AD4-28

{
  "schema_version": 1,
  "type": "component",
  "slug": "sk6019ad4-28",
  "title": "SK6019AD4-28",
  "brief": "Suntek Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, XDFN-4-EP(1x1). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "sk6019ad4-28"
  ],
  "component": {
    "mpn": "SK6019AD4-28",
    "manufacturer": "Suntek",
    "package": "XDFN-4-EP(1x1)",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e3e784eecc63cf9231d872fb2a1077bb.pdf",
    "parts": {
      "symbol": "sk6019ad4-28.kicad_sym",
      "footprint": "sk6019ad4-28.kicad_mod",
      "model_3d": "sk6019ad4-28-etched.glb",
      "model_3d_plain": "sk6019ad4-28.glb",
      "model_3d_step": "sk6019ad4-28-etched.step",
      "model_3d_step_plain": "sk6019ad4-28.step",
      "lbr": "sk6019ad4-28.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated LDO output. Factory-set to 2.8V for the -28 suffix (1.0V-3.6V in 0.1V steps for the family). Requires a 1µF ceramic output capacitor to GND for stability; supports up to 750mA (typ. 700mA) with a fast active-discharge path enabled when EN is low."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference. Also connected to the thermal pad on the package underside, which must be soldered to the PCB ground plane for proper heat dissipation."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input, active high. Logic high (VIH ≥ 1.2V, up to VIN) turns the regulator on; logic low (VIL ≤ 0.4V) shuts it down (ISHDN < 1µA) and activates the VOUT discharge path. Must not be left floating. Input current ≤ 1µA over 0-5.5V."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated supply input, 2.5V to 6.5V (absolute max 8V). Requires a 1µF ceramic bypass capacitor to GND close to the pin. Dropout is typ. 110mV at IOUT = 200mA."
      },
      {
        "number": "5",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad on the underside of the DFN1x1-4L package, electrically connected to GND. Must be soldered to the PCB ground copper for thermal performance and mechanical reliability."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e3e784eecc63cf9231d872fb2a1077bb.pdf",
        "pages": 8,
        "sha256": "151d8627fd2b92d5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sk6019ad4-28.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.002,
          1.0,
          0.385
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1fcbe51eaca76e761de8aac3070a55467f3017cf1867ff062861bcfffd48546a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sk6019ad4-28-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.002,
          1.0,
          0.385
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "db4d7fc736b32b4b911ba39f94c3e45512635ba2ba26921f2e4c89c3c124d467",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Suntek",
      "Package": "XDFN-4-EP(1x1)",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sk6019ad4-28"
  ],
  "discovery_pitch": "SK6019AD4-28 (Suntek) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sk6019ad4-28.kicad_sym",
    "sk6019ad4-28.kicad_mod",
    "sk6019ad4-28.glb",
    "sk6019ad4-28.step",
    "sk6019ad4-28-etched.step",
    "sk6019ad4-28.lbr",
    "docs/hero.png",
    "docs/sk6019ad4-28-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SK6019AD4-XX",
      "kind": "unknown"
    },
    {
      "mpn": "SK6019AD4-28",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T06:07:41.242Z"
}