SSP9461

{
  "schema_version": 1,
  "type": "component",
  "slug": "ssp9461",
  "title": "SSP9461",
  "brief": "Shanghai Siproin Microelectronics DC-DC Converters, SOP-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ssp9461"
  ],
  "component": {
    "mpn": "SSP9461",
    "manufacturer": "Shanghai Siproin Microelectronics",
    "package": "SOP-8-EP",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f037e435fd24fceead9ea3e277440fe6.pdf",
    "parts": {
      "symbol": "ssp9461.kicad_sym",
      "footprint": "ssp9461.kicad_mod",
      "model_3d": "ssp9461-etched.glb",
      "model_3d_plain": "ssp9461.glb",
      "model_3d_step": "ssp9461-etched.step",
      "model_3d_step_plain": "ssp9461.step",
      "lbr": "ssp9461.lbr"
    },
    "distributor_links": {
      "lcsc": "C2758008"
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin (4.5V to 60V, absolute max 62V). Powers all internal control circuits and the high-side MOSFET. Requires a decoupling capacitor to ground placed close to the pin to reduce switching spikes."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating or tie to ground per PCB layout preference."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input. Pull below the enable-off threshold (Venf ≈ 1.0V) to disable the converter; pull above the enable-on threshold (Venr ≈ 1.35V) to enable. Connect a 100kΩ resistor to VIN for automatic turn-on. EN input current is ~3.1μA at 2V and ~0.1μA at 0V."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the internal error amplifier (reference 0.812V typ). Set the output voltage via a resistor divider from VOUT to FB. When FB drops below ~250mV (short-circuit), the reentry circuit reduces the switching frequency (~150kHz) for reliable current-limit protection."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating or tie to ground per PCB layout preference."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the IC. Should be connected as close as possible to the output capacitor return and avoid high-current switching paths. The ESOP-8 exposed thermal pad should be tied to this ground for improved heat dissipation."
      },
      {
        "number": "7",
        "name": "BST",
        "type": "power_out",
        "description": "Bootstrap capacitor pin. Provides the floating positive supply for the internal high-side MOSFET gate driver. Connect a bypass capacitor (typ 100nF) between BST and SW. Absolute max BST-to-SW voltage is 6.0V."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switch node, drain of the internal high-side power MOSFET (1Ω RDS(on)). Connects to the external inductor and to a low-VF Schottky freewheeling diode to ground. Absolute max range −0.3V to VIN(MAX)+0.3V."
      },
      {
        "number": "9",
        "name": "EXPOSED PAD",
        "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/f037e435fd24fceead9ea3e277440fe6.pdf",
        "pages": 8,
        "sha256": "555ed7ce759feb01",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "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": "ssp9461.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ssp9461-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "62abeec8fbb6a589b8aa760c6f3a7086f71d9e0d892885e6e66ccd2074186fc9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Siproin Microelectronics",
      "Package": "SOP-8-EP",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ssp9461"
  ],
  "discovery_pitch": "SSP9461 (Shanghai Siproin Microelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ssp9461.kicad_sym",
    "ssp9461.kicad_mod",
    "ssp9461.glb",
    "ssp9461.step",
    "ssp9461-etched.step",
    "ssp9461.lbr",
    "docs/hero.png",
    "docs/ssp9461-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "SSP9461",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T08:22:19.726Z"
}