TPS74901RGWT

{
  "slug": "tps74901rgwt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Linear Voltage Regulators (LDO), VQFN-20-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "tps74901rgwt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps74901rgwt.kicad_sym",
    "tps74901rgwt.kicad_mod",
    "tps74901rgwt.glb",
    "tps74901rgwt.step",
    "tps74901rgwt.lbr",
    "docs/hero.png",
    "docs/tps74901rgwt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps74901rgwt-hero.glb",
    "tps74901rgwt-hero.overlay.json",
    "tps74901rgwt-etched.glb"
  ],
  "component": {
    "mpn": "TPS74901RGWT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-20-EP(5x5)",
    "pin_count": 21,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tps74901.pdf",
    "parts": {
      "symbol": "tps74901rgwt.kicad_sym",
      "footprint": "tps74901rgwt.kicad_mod",
      "model_3d": "tps74901rgwt-hero.glb",
      "model_3d_plain": "tps74901rgwt-etched.glb",
      "model_3d_step": "tps74901rgwt-etched.step",
      "model_3d_step_plain": "tps74901rgwt.step",
      "lbr": "tps74901rgwt.lbr"
    },
    "distributor_links": {
      "lcsc": "C201688",
      "digikey": "296-29842-2-ND",
      "mouser": "595-TPS74901RGWT"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:20:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-29842-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TPS74901RGWT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Regulated output voltage. A small capacitor (total typical capacitance ≥ 2.2µF, ceramic) is needed from this pin to ground to assure stability."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane."
      },
      {
        "number": "5",
        "name": "IN",
        "type": "input",
        "description": "Unregulated input to the device; the recommended input supply voltage is up to 5.5 V and the absolute maximum is 6 V."
      },
      {
        "number": "6",
        "name": "IN",
        "type": "input",
        "description": "Unregulated input to the device; the recommended input supply voltage is up to 5.5 V and the absolute maximum is 6 V."
      },
      {
        "number": "7",
        "name": "IN",
        "type": "input",
        "description": "Unregulated input to the device; the recommended input supply voltage is up to 5.5 V and the absolute maximum is 6 V."
      },
      {
        "number": "8",
        "name": "IN",
        "type": "input",
        "description": "Unregulated input to the device; the recommended input supply voltage is up to 5.5 V and the absolute maximum is 6 V."
      },
      {
        "number": "9",
        "name": "PG",
        "type": "output",
        "description": "Power-good (PG) is an open-drain, active-high output that indicates the status of VOUT; it requires a pullup resistor from 10kΩ to 1MΩ to a supply up to 5.5V."
      },
      {
        "number": "10",
        "name": "BIAS",
        "type": "input",
        "description": "Bias input voltage for error amplifier, reference, and internal control circuits; it must be at least VOUT + VDO(VBIAS) and at least 2.7 V, with a maximum of 5.5 V."
      },
      {
        "number": "11",
        "name": "EN",
        "type": "input",
        "description": "Enable pin. Driving this pin high enables the regulator. Driving this pin low puts the regulator into shutdown mode. This pin must not be left floating."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the regulator."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane."
      },
      {
        "number": "15",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start pin. A capacitor connected on this pin to ground sets the start-up time. If this pin is left floating, the regulator output soft-start ramp time is typically 100µs."
      },
      {
        "number": "16",
        "name": "FB",
        "type": "input",
        "description": "Feedback connection to the center tap of an external resistor divider network that sets the output voltage. This pin must not be left floating."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane."
      },
      {
        "number": "18",
        "name": "OUT",
        "type": "output",
        "description": "Regulated output voltage. A small capacitor (total typical capacitance ≥ 2.2µF, ceramic) is needed from this pin to ground to assure stability."
      },
      {
        "number": "19",
        "name": "OUT",
        "type": "output",
        "description": "Regulated output voltage. A small capacitor (total typical capacitance ≥ 2.2µF, ceramic) is needed from this pin to ground to assure stability."
      },
      {
        "number": "20",
        "name": "OUT",
        "type": "output",
        "description": "Regulated output voltage. A small capacitor (total typical capacitance ≥ 2.2µF, ceramic) is needed from this pin to ground to assure stability."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Figure 4-1 (RGW VQFN top view) is garbled in the extracted text, so the VQFN pinout was taken from t; Table 4-1 gives no pin type for SS (shown as a dash). It is listed as passive because it is a capaci; The exposed thermal pad is not given a numbered pin in the datasheet (Table 4-1 says solder to the g"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0225,
        "at": "2026-11-05T23:20:02"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tps74901.pdf",
        "pages": 47,
        "sha256": "bf8af2cd98671dc1",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tps74901rgwt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9466f19e7a94c1920e0c82ac10746517bca0b846bd3c01a7053914bd9856799f",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps74901rgwt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "23701cd50fb3ba62d3dc06abd1c6cc84a63725ab18c37b226a1d31f37f4bbd2b",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}