MP24943DS-LF-Z

{
  "slug": "mp24943ds-lf-z",
  "version": "0.1.0",
  "type": "component",
  "description": "Monolithic Power Systems DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "mp24943ds-lf-z",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mp24943ds-lf-z.kicad_sym",
    "mp24943ds-lf-z.kicad_mod",
    "mp24943ds-lf-z.glb",
    "mp24943ds-lf-z.step",
    "mp24943ds-lf-z.lbr",
    "docs/hero.png",
    "docs/mp24943ds-lf-z-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mp24943ds-lf-z-hero.glb",
    "mp24943ds-lf-z-hero.overlay.json",
    "mp24943ds-lf-z-etched.glb"
  ],
  "component": {
    "mpn": "MP24943DS-LF-Z",
    "manufacturer": "Monolithic Power Systems",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600493348986118144",
    "parts": {
      "symbol": "mp24943ds-lf-z.kicad_sym",
      "footprint": "mp24943ds-lf-z.kicad_mod",
      "model_3d": "mp24943ds-lf-z-hero.glb",
      "model_3d_plain": "mp24943ds-lf-z-etched.glb",
      "model_3d_step": "mp24943ds-lf-z-etched.step",
      "model_3d_step_plain": "mp24943ds-lf-z.step",
      "lbr": "mp24943ds-lf-z.lbr"
    },
    "distributor_links": {
      "lcsc": "C5800294",
      "digikey": "1589-MP24943DS-LF-ZTR-ND",
      "mouser": "946-MP24943DSLFZ"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T23:24:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1589-MP24943DS-LF-ZTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "946-MP24943DSLFZ",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input with an unregulated range of 4.5V to 55V; an input capacitor (CIN) is required to decouple it and it provides the drain of the internal power device."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground and voltage reference for the regulated output; this node must be placed outside the D1-to-CIN ground path to prevent current spikes from inducing voltage noise."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input: pulling it below 0.4V shuts the chip down, and pulling it above 1.8V enables the chip."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input for an external resistor divider from VOUT to GND that sets the output voltage against the 0.8V reference."
      },
      {
        "number": "5",
        "name": "SS",
        "type": "input",
        "description": "Soft-start pin; connect an external capacitor to set the soft-start ramp."
      },
      {
        "number": "6",
        "name": "VO",
        "type": "input",
        "description": "Output over-voltage protection input; connect to the tap of an external divider from VOUT to GND, with the OVP reference at 0.9V."
      },
      {
        "number": "7",
        "name": "BST",
        "type": "passive",
        "description": "Bootstrap pin; a capacitor between SW and BST forms a floating supply that drives the power switch gate above the supply voltage, with an optional external diode from VIN or VOUT if the on-chip regulator is not strong enough."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switch output that connects the internal power switch and inductor to the output supply."
      }
    ],
    "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 pin table lists pin 2 as 'GND, Exposed Pad', and the exposed-pad note ('connect to pin 2') appea; The datasheet gives 'Switch Output. Output supply.' for SW with no electrical limits. Its KiCad type; Pin types for SS, VO and BST are inferred from their functions; the datasheet does not classify them"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0486,
        "at": "2026-10-20T23:22:03"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600493348986118144",
        "pages": 13,
        "sha256": "91595da34b0e9f1a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mp24943ds-lf-z.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mp24943ds-lf-z-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bbe2ac1697d439acf7d360779201e7d14e70f5c9bb3b13a0b45da95b877d20ea",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}