LM2576HVS-5.0

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2576hvs-5-0",
  "title": "LM2576HVS-5.0",
  "brief": "UMW DC-DC Converters, TO-263-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "lm2576hvs-5.0"
  ],
  "component": {
    "mpn": "LM2576HVS-5.0",
    "manufacturer": "UMW",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2403191740_UMW-Youtai-Semiconductor-Co---Ltd--LM2576HVS-5-0_C347437.pdf",
    "parts": {
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      "footprint": "lm2576hvs-5-0.kicad_mod",
      "model_3d": "lm2576hvs-5-0-etched.glb",
      "model_3d_plain": "lm2576hvs-5-0.glb",
      "model_3d_step": "lm2576hvs-5-0-etched.step",
      "model_3d_step_plain": "lm2576hvs-5-0.step",
      "lbr": "lm2576hvs-5-0.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated DC input supply. Operating range 4.5V to 60V for the HV variant (LM2576HV); absolute maximum 63V. Bypass close to the pin with the input capacitor (CIN)."
      },
      {
        "number": "2",
        "name": "Output",
        "type": "output",
        "description": "Switching output of the internal 3A NPN power switch. Connects to the inductor L1 and the cathode of the catch diode (e.g. 1N5822). Withstands transient down to -1V vs. GND."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference. Common return for input, output, feedback divider and ON/OFF pin. Tie directly to the ground plane; the TO-263 tab is also connected to GND."
      },
      {
        "number": "4",
        "name": "Feedback",
        "type": "input",
        "description": "Output voltage feedback input to the internal error amplifier (1.23V bandgap reference). For the -5.0 fixed variant, tie directly to the regulated +5V output node; the internal divider sets VOUT = 5.0V ±4%."
      },
      {
        "number": "5",
        "name": "ON/OFF",
        "type": "input",
        "description": "Active-low TTL shutdown input. Regulator is enabled when this pin is Low or left floating; pulling it High (up to +VIN, min -0.3V) puts the device into low-power standby (~50µA typical). Do not exceed VIN."
      },
      {
        "number": "6",
        "name": "TAB",
        "type": "power_in",
        "description": "Exposed thermal pad. Present in the package land pattern; connect it per the manufacturer datasheet thermal recommendation. Added because the footprint carries this pad and the symbol had no pin for it.",
        "source": "derived-from-footprint"
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2403191740_UMW-Youtai-Semiconductor-Co---Ltd--LM2576HVS-5-0_C347437.pdf",
        "pages": 18,
        "sha256": "10275fb18a78ad8b",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -7.65,
        -3.4
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TO-263-5_TabPin6@sha256:77e8ff2d643255fc",
      "mark": "drawn"
    },
    "models_3d": [
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        "file": "lm2576hvs-5-0.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2576hvs-5-0-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": "8b49810f0115877fe0a8f6342e54fa4abe8db073b35cd6cc2160e5352c984130",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "TO-263-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2576hvs-5.0"
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  "discovery_pitch": "LM2576HVS-5.0 (UMW) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2576hvs-5-0.kicad_sym",
    "lm2576hvs-5-0.kicad_mod",
    "lm2576hvs-5-0.glb",
    "lm2576hvs-5-0.step",
    "lm2576hvs-5-0-etched.step",
    "lm2576hvs-5-0.lbr",
    "docs/hero.png",
    "docs/lm2576hvs-5-0-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "LM2576HVS-5.0S",
      "kind": "packaging"
    },
    {
      "mpn": "LM2576HVS-5.0T",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T00:10:21.228Z"
}