TPS54427DDAR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps54427ddar",
  "title": "TPS54427DDAR",
  "brief": "Texas Instruments DC-DC Converters, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tps54427ddar"
  ],
  "component": {
    "mpn": "TPS54427DDAR",
    "manufacturer": "Texas Instruments",
    "package": "SOP-8",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps54427ddar.pdf",
    "parts": {
      "symbol": "tps54427ddar.kicad_sym",
      "footprint": "tps54427ddar.kicad_mod",
      "model_3d": "tps54427ddar-etched.glb",
      "model_3d_plain": "tps54427ddar.glb",
      "model_3d_step": "tps54427ddar-etched.step",
      "model_3d_step_plain": "tps54427ddar.step",
      "lbr": "tps54427ddar.lbr"
    },
    "distributor_links": {
      "lcsc": "C472488"
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable input control. Active high; must be pulled up to enable the device. VIH ≥ 1.6 V, VIL ≤ 0.6 V. Internal ~450 kΩ pull-down to GND (225-900 kΩ). Absolute max −0.3 to 20 V."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "Converter feedback input. Connect to the output voltage via a resistor divider to set VOUT. Internal reference (VFBTH) is 765 mV typ (757-773 mV at 25 °C). Input current ±0.1 µA max."
      },
      {
        "number": "3",
        "name": "VREG5",
        "type": "power_out",
        "description": "5.5 V internal LDO power supply output (5.2-5.7 V, up to 60 mA). Bypass with a ~1 µF capacitor to GND. Not active when EN is low. Also feeds internal gate drive."
      },
      {
        "number": "4",
        "name": "SS",
        "type": "input",
        "description": "Soft-start control. Connect an external capacitor from SS to GND to program the soft-start ramp time. Absolute max −0.3 to 6.5 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Power ground return for the switching circuit. Sensitive SS and VFB returns must be tied to GND at a single point."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node between the high-side NFET (drain of low-side, source of high-side). Connect to the output inductor. Absolute max −2 to 20 V (−3 to 22 V for 10 ns transients)."
      },
      {
        "number": "7",
        "name": "VBST",
        "type": "power_in",
        "description": "Bootstrap supply for the high-side FET gate driver. Connect a 0.1 µF capacitor between VBST and SW. An internal diode is connected between VREG5 and VBST for charging. VBST(vs SW) max 6 V."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "Input voltage supply pin. Operating range 4.5 V to 18 V (absolute max 20 V). Bypass with ceramic capacitance close to the pin."
      },
      {
        "number": "9",
        "name": "PowerPAD",
        "type": "power_in",
        "description": "Exposed thermal pad on the underside. Must be soldered to the PCB ground plane for proper thermal dissipation and must be electrically connected to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps54427ddar.pdf",
        "pages": 32,
        "sha256": "75b4634a9b5c2b51",
        "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_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "tps54427ddar.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.4,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "53b055ee4d166c0b9de551669cc1294f95b96baacbfe26d9316b576c1ce29fbf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps54427ddar-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.4,
          4.9,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "00f8b0186d75f562e5bc3def9b09fe7c52ba2cf9f1d988c819b7870ed085639e",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOP-8",
      "Category": "PMIC",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tps54427ddar"
  ],
  "discovery_pitch": "TPS54427DDAR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps54427ddar.kicad_sym",
    "tps54427ddar.kicad_mod",
    "tps54427ddar.glb",
    "tps54427ddar.step",
    "tps54427ddar-etched.step",
    "tps54427ddar.lbr",
    "docs/hero.png",
    "docs/tps54427ddar-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TPS54427DDAR",
      "kind": "packaging"
    },
    {
      "mpn": "TPS54427DDARDRC",
      "kind": "packaging"
    },
    {
      "mpn": "TPS54427DDARDRCR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T12:12:05.691Z"
}