RT7272BGSP

{
  "schema_version": 1,
  "type": "component",
  "slug": "rt7272bgsp",
  "title": "RT7272BGSP",
  "brief": "Richtek Tech DC-DC Converters, SOIC-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "rt7272bgsp"
  ],
  "component": {
    "mpn": "RT7272BGSP",
    "manufacturer": "Richtek Tech",
    "package": "SOIC-8-EP",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ee1ef0bf9c4c42c8c2b9605761eec2bf.pdf",
    "parts": {
      "symbol": "rt7272bgsp.kicad_sym",
      "footprint": "rt7272bgsp.kicad_mod",
      "model_3d": "rt7272bgsp-etched.glb",
      "model_3d_plain": "rt7272bgsp.glb",
      "model_3d_step": "rt7272bgsp-etched.step",
      "model_3d_step_plain": "rt7272bgsp.step",
      "lbr": "rt7272bgsp.lbr"
    },
    "distributor_links": {
      "lcsc": "C127866"
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Switch Node. Internal high-side/low-side N-MOSFET common drain node. Connect to the external L-C output filter. Absolute maximum -0.3V to (VIN + 0.3V)."
      },
      {
        "number": "2",
        "name": "BOOT",
        "type": "power_in",
        "description": "Bootstrap Supply for the High-Side Gate Driver. Connect a 100nF or greater ceramic capacitor from BOOT to SW. VBOOT - VSW absolute maximum is -0.3V to 6V."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable Control Input. Logic-high (VIH ≥ 2V) enables the converter; logic-low (VIL ≤ 0.4V) forces the device into shutdown mode (IQ ≈ 0.5µA). Do not float."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground. Signal and power ground return. Connect together with the exposed pad (pin 9) to a large PCB copper area for maximum thermal dissipation."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback Input. Connect to the converter output through a resistive divider to program the output voltage. Internal reference VREF = 0.8V (typ)."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Compensation Node. Error amplifier output used to compensate the control loop. Connect a series R-C network from COMP to GND; an additional shunt capacitor to GND may be required in some designs."
      },
      {
        "number": "7",
        "name": "RLIM",
        "type": "input",
        "description": "Current Limit Setting. Connect a resistor from RLIM to GND to program the high-side MOSFET peak current limit (adjustable from 1.9A to 7A per RLIM equation in Note 5)."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Power Input. Supplies the internal regulator and the high-side MOSFET drain. Operating range 4.5V to 36V (absolute max 40V). Bypass with a suitable large ceramic capacitor placed close to the pin."
      },
      {
        "number": "9",
        "name": "GND (Exposed Pad)",
        "type": "power_in",
        "description": "Exposed thermal pad. Must be soldered to a large PCB copper area connected to GND for maximum thermal dissipation. Electrically connected to pin 4 (GND)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ee1ef0bf9c4c42c8c2b9605761eec2bf.pdf",
        "pages": 15,
        "sha256": "cdf11346d1fc1345",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "rt7272bgsp.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rt7272bgsp-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "94288450576efb199ca7a613fe72b0183ac26f3b9492201ccfa485d5a9387b0d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "SOIC-8-EP",
      "Category": "PMIC",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "rt7272bgsp"
  ],
  "discovery_pitch": "RT7272BGSP (Richtek Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "rt7272bgsp.kicad_sym",
    "rt7272bgsp.kicad_mod",
    "rt7272bgsp.glb",
    "rt7272bgsp.step",
    "rt7272bgsp-etched.step",
    "rt7272bgsp.lbr",
    "docs/hero.png",
    "docs/rt7272bgsp-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "RT7272BGSP",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T05:14:40.806Z"
}