LM2596-5.0FW05ARHQ

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2596-5-0fw05arhq",
  "title": "LM2596-5.0FW05ARHQ",
  "brief": "GR LM2596 5 0FW05ARHQ 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": [
    "component",
    "pmic",
    "lm2596-5.0fw05arhq"
  ],
  "component": {
    "mpn": "LM2596-5.0FW05ARHQ",
    "manufacturer": "GR LM2596 5 0FW05ARHQ",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/85e4ac686f5b98b6fc963b093021144a.pdf",
    "parts": {
      "symbol": "lm2596-5-0fw05arhq.kicad_sym",
      "footprint": "lm2596-5-0fw05arhq.kicad_mod",
      "model_3d": "lm2596-5-0fw05arhq-etched.glb",
      "model_3d_plain": "lm2596-5-0fw05arhq.glb",
      "model_3d_step": "lm2596-5-0fw05arhq-etched.step",
      "model_3d_step_plain": "lm2596-5-0fw05arhq.step",
      "lbr": "lm2596-5-0fw05arhq.lbr"
    },
    "distributor_links": {
      "lcsc": "C46641091"
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive input supply for the IC switching regulator. Operating range 4.5 V to 40 V (45 V absolute maximum). A suitable input bypass capacitor (e.g. 470 μF, 50 V) must be present at this pin to minimize voltage transients and supply the switching currents required by the regulator."
      },
      {
        "number": "2",
        "name": "Output",
        "type": "output",
        "description": "Internal power switch output (emitter of the 3 A internal NPN switch). The voltage at this pin switches between approximately (+VIN − VSAT, VSAT ≈ 1.5 V at 3 A) and approximately −0.5 V with a duty cycle of VOUT/VIN. Connect to the catch diode and inductor of the buck output stage; keep the PCB copper area on this node small to minimize EMI coupling."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Circuit ground return for the IC. On the TO-263 package the metal tab is internally connected to GND and serves as the primary thermal path to the PCB copper plane."
      },
      {
        "number": "4",
        "name": "Feedback",
        "type": "input",
        "description": "Senses the regulated output voltage to complete the internal feedback loop. On the fixed 5 V version this pin is tied directly to the regulated 5 V output through the application circuit (internal divider sets 5 V ±4% over line/load). Absolute maximum feedback pin voltage is −0.3 V to 25 V."
      },
      {
        "number": "5",
        "name": "~{ON}/OFF",
        "type": "input",
        "description": "Active-low TTL-compatible shutdown control. Pulling this pin below ~1 V (VIH threshold typ 1.3 V) turns the regulator on; pulling it above ~1.3 V (up to 25 V max) shuts the regulator down, dropping total input supply current to ~80 μA standby. Input current is ~10 μA at 2.5 V. If shutdown is not used, tie to GND or leave open (regulator will be ON)."
      },
      {
        "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://datasheet.lcsc.com/datasheet/pdf/85e4ac686f5b98b6fc963b093021144a.pdf",
        "pages": 9,
        "sha256": "17c54a9eaf1cc15c",
        "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": [
      {
        "file": "lm2596-5-0fw05arhq.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": "lm2596-5-0fw05arhq-etched.step",
        "role": "eda",
        "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": "6e9fa6d6a13dd3ab1c2964dba848f2f877460305ac8a480d216d6f3aabaa433a",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GR",
      "Package": "TO-263-5",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2596-5.0fw05arhq"
  ],
  "discovery_pitch": "LM2596-5.0FW05ARHQ (GR LM2596 5 0FW05ARHQ) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2596-5-0fw05arhq.kicad_sym",
    "lm2596-5-0fw05arhq.kicad_mod",
    "lm2596-5-0fw05arhq.glb",
    "lm2596-5-0fw05arhq.step",
    "lm2596-5-0fw05arhq-etched.step",
    "lm2596-5-0fw05arhq.lbr",
    "docs/hero.png",
    "docs/lm2596-5-0fw05arhq-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "LM2596-5.0FW05ARHQ",
      "kind": "packaging"
    },
    {
      "mpn": "LM2596-5.0FW05ARHQDW05ATEQ",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T16:14:00.723Z"
}