SK6253B

{
  "slug": "sk6253b",
  "version": "0.1.0",
  "type": "component",
  "description": "Suntek DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "sk6253b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sk6253b.kicad_sym",
    "sk6253b.kicad_mod",
    "sk6253b.glb",
    "sk6253b.step",
    "sk6253b.lbr",
    "docs/hero.png",
    "docs/sk6253b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sk6253b-hero.glb",
    "sk6253b-hero.overlay.json",
    "sk6253b-etched.glb"
  ],
  "component": {
    "mpn": "SK6253B",
    "manufacturer": "Suntek",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590268843051278336",
    "parts": {
      "symbol": "sk6253b.kicad_sym",
      "footprint": "sk6253b.kicad_mod",
      "model_3d": "sk6253b-hero.glb",
      "model_3d_plain": "sk6253b-etched.glb",
      "model_3d_step": "sk6253b-etched.step",
      "model_3d_step_plain": "sk6253b.step",
      "lbr": "sk6253b.lbr"
    },
    "distributor_links": {
      "lcsc": "C5120320"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:26:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the datasheet recommends connecting GND to a large copper area to cool the chip and improve thermal performance."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "output",
        "description": "Switching pin; SW voltage is rated -0.3 V to VIN+1 V (-5 V to VIN+2 V for 10 ns transients), and a capacitor between SW and BS forms the high-side driver supply."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply pin; the input voltage range is 4.5 V to 16 V, with an absolute maximum VIN of 16 V."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Adjustable-version feedback input, connected to the center point of the external resistor divider; the feedback voltage is 0.765 V nominal (0.746 V to 0.784 V) and the FB absolute maximum is 6 V."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Drive to logic-high to enable the IC and to logic-low to disable it into micro-power shutdown; the EN rising threshold is 1.2 V, the falling threshold is 0.8 V, and the EN absolute maximum is 16 V."
      },
      {
        "number": "6",
        "name": "BS",
        "type": "passive",
        "description": "Bootstrap pin; a capacitor connected between SW and BS is required to form a floating supply for the high-side switch driver, with BS voltage to SW limited to 6.5 V maximum."
      }
    ],
    "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 does not assign KiCad ERC types; SW is typed as output (switch node) and BS as passive; Ordering information lists SK6253B only in SOT23-6 (3000 per reel), so the pinout above is for the p"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0577,
        "at": "2026-10-18T07:25:24"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590268843051278336",
        "pages": 13,
        "sha256": "3a6c225f16df4a75",
        "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": "sk6253b.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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sk6253b-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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "25dca13f681cbdc14090e9af3ec4f825081cda351f7c000d3bd8b69ddd7079a2",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}