TPS7A3901DSCT

{
  "slug": "tps7a3901dsct",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Linear Voltage Regulators (LDO), WSON-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "tps7a3901dsct",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps7a3901dsct.kicad_sym",
    "tps7a3901dsct.kicad_mod",
    "tps7a3901dsct.glb",
    "tps7a3901dsct.step",
    "tps7a3901dsct.lbr",
    "docs/hero.png",
    "docs/tps7a3901dsct-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps7a3901dsct-hero.glb",
    "tps7a3901dsct-hero.overlay.json",
    "tps7a3901dsct-etched.glb"
  ],
  "component": {
    "mpn": "TPS7A3901DSCT",
    "manufacturer": "Texas Instruments",
    "package": "WSON-10-EP(3x3)",
    "pin_count": 11,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps7a39",
    "parts": {
      "symbol": "tps7a3901dsct.kicad_sym",
      "footprint": "tps7a3901dsct.kicad_mod",
      "model_3d": "tps7a3901dsct-hero.glb",
      "model_3d_plain": "tps7a3901dsct-etched.glb",
      "model_3d_step": "tps7a3901dsct-etched.step",
      "model_3d_step_plain": "tps7a3901dsct.step",
      "lbr": "tps7a3901dsct.lbr"
    },
    "distributor_links": {
      "lcsc": "C2876324"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:39:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 995 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INP",
        "type": "power_in",
        "description": "Positive input supply (3.3V to 33V); requires a 10µF or larger capacitor to ground placed as close to the pin as possible for stability."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Enable pin: logic high (VEN ≥ VIH(EN)) enables the device and logic low (VEN ≤ VIL(EN)) disables it; tie to INP if unused and VEN must not exceed VINP."
      },
      {
        "number": "3",
        "name": "NR/SS",
        "type": "passive",
        "description": "Noise-reduction and soft-start pin; a capacitor of 10nF or larger to GND reduces reference noise and enables soft start and startup tracking, and it can also be driven externally as a reference."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; must be connected to ground through a low-impedance path and to the thermal pad."
      },
      {
        "number": "5",
        "name": "INN",
        "type": "power_in",
        "description": "Negative input supply (-3.3V to -33V); requires a 10µF or larger capacitor to ground placed as close to the pin as possible for stability."
      },
      {
        "number": "6",
        "name": "OUTN",
        "type": "power_out",
        "description": "Negative output; requires a 10µF or larger capacitor to ground placed as close to the pin as possible for stability."
      },
      {
        "number": "7",
        "name": "FBN",
        "type": "input",
        "description": "Negative output feedback pin that sets the negative output voltage, regulated to VFBN; an optional 10nF feedforward capacitor goes from OUTN to FBN and the pin must never be grounded."
      },
      {
        "number": "8",
        "name": "BUF",
        "type": "output",
        "description": "Buffered reference output connected through R2N to FBN for the negative feedback network; it can drive external circuits with a maximum load of 1mA."
      },
      {
        "number": "9",
        "name": "FBP",
        "type": "input",
        "description": "Positive output feedback pin that sets the positive output voltage, regulated to VFBP; an optional 10nF feedforward capacitor goes from OUTP to FBP and the pin must not be directly grounded."
      },
      {
        "number": "10",
        "name": "OUTP",
        "type": "power_out",
        "description": "Positive output; requires a 10µF or larger capacitor to ground placed as close to the pin as possible for stability."
      },
      {
        "number": "11",
        "name": "Thermal Pad",
        "type": "passive",
        "description": "Thermal pad, internally connected to GND; connect to a large ground plane."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The thermal pad is printed as 'Pad' with no pin number in the datasheet. I assigned it number 11 (pa; The datasheet pin table gives no I/O type for NR/SS (shown as '—'). I chose passive because it conne"
        ],
        "pages_sent": 26,
        "cost_usd": 0.2276,
        "at": "2026-10-22T22:39:17"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps7a39",
        "pages": 54,
        "sha256": "ed6adf7cb68e7992",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tps7a3901dsct.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.02
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1b436233b33ebba84da89538e97b0062d5b95e5ae0b484c46c569cb67274a3a5",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps7a3901dsct-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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c30e17ca675fd9851ac5e3eb12ba91aaf79a5077bd7f92ec9bc15963b79530f7",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}