LM2575S-3.3 P+

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2575s-3-3-p",
  "title": "LM2575S-3.3 P+",
  "brief": "JSMSEMI DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management ics",
    "lm2575s-3.3 p+",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "LM2575S-3.3 P+",
    "manufacturer": "JSMSEMI",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5ee3675283757ca70fbdda4f236f752d.pdf",
    "parts": {
      "symbol": "lm2575s-3-3-p.kicad_sym",
      "footprint": "lm2575s-3-3-p.kicad_mod",
      "model_3d": "lm2575s-3-3-p-hero.glb",
      "model_3d_plain": "lm2575s-3-3-p-etched.glb",
      "model_3d_step": "lm2575s-3-3-p-etched.step",
      "model_3d_step_plain": "lm2575s-3-3-p.step",
      "lbr": "lm2575s-3-3-p.lbr"
    },
    "distributor_links": {
      "lcsc": "C963389"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:18:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply pin, rated for 4V to 40V operation with an absolute maximum of 45V."
      },
      {
        "number": "2",
        "name": "OUTPUT",
        "type": "output",
        "description": "Switching regulator output pin, which can be taken to -1V (steady state) relative to common and is fixed at 3.3V for this -3.3 option."
      },
      {
        "number": "3",
        "name": "COMMON",
        "type": "power_in",
        "description": "Common (ground) pin of the regulator, which is also connected to the package tab."
      },
      {
        "number": "4",
        "name": "FEEDBACK",
        "type": "input",
        "description": "Feedback sense input to the error amplifier, with internal resistors on fixed-voltage options such as this 3.3V part."
      },
      {
        "number": "5",
        "name": "ON/OFF",
        "type": "input",
        "description": "Active-low on/off control input that must stay between -0.3V and VIN, with VIL 1.0V max (on, 0V) and VIH 2.2V min (off, 5V)."
      },
      {
        "number": "6",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pin table gives pin names only (VIN, OUTPUT, COMMON, FEEDBACK, ON/OFF) and notes 'TAB ; The pin table is shared by LM2575 and LM2576 and by both TO-220-5 and TO-263-5. The pin descriptions",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.4685,
        "at": "2026-10-23T12:18:06"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5ee3675283757ca70fbdda4f236f752d.pdf",
        "pages": 12,
        "sha256": "f2bb0fb60f90d05e",
        "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": [
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        "file": "lm2575s-3-3-p.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "94c2a3dc1aaad85b6b5193f97d9a7c61b4e28bac25952a1e629557bcf747e246",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2575s-3-3-p-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d91c611348ade613c5c5b9a42ed7687391c1dbb5d82e17cdad0f4893c104df39",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "JSMSEMI",
      "Package": "TO-263-5",
      "Category": "Power Management ICs",
      "Pins": "6"
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2575s-3.3 p+"
  ],
  "discovery_pitch": "LM2575S-3.3 P+ (JSMSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "docs/lm2575s-3-3-p-datasheet.pdf",
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  "visibility": {
    "public": true
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}