TPS79428DCQR

{
  "slug": "tps79428dcqr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps79428dcqr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps79428dcqr.kicad_sym",
    "tps79428dcqr.kicad_mod",
    "tps79428dcqr.glb",
    "tps79428dcqr.step",
    "tps79428dcqr.lbr",
    "docs/hero.png",
    "docs/tps79428dcqr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps79428dcqr-hero.glb",
    "tps79428dcqr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TPS79428DCQR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-223-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps794",
    "parts": {
      "symbol": "tps79428dcqr.kicad_sym",
      "footprint": "tps79428dcqr.kicad_mod",
      "model_3d": "tps79428dcqr-hero.glb",
      "model_3d_plain": "tps79428dcqr.glb",
      "model_3d_step": "tps79428dcqr-etched.step",
      "model_3d_step_plain": "tps79428dcqr.step",
      "lbr": "tps79428dcqr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2877949",
      "digikey": "296-TPS79428DCQRTR-ND",
      "mouser": "595-TPS79428DCQR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T22:52:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TPS79428DCQRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS79428DCQR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Enable input: a logic-high level enables the device and a logic-low level (below VEN(LOW), max 0.7 V for the old chip or 0.425 V for the new chip) puts it in shutdown, with VEN(HI) of at least 1.7 V (old chip) or 0.85 × VIN (new chip) and VEN up to 5.5 V."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "input",
        "description": "Unregulated input to the regulator, operating over 2.7 V to 5.5 V, with an absolute maximum of 6 V (old chip) or VIN + 0.3 V / 6.5 V, whichever is smaller (new chip), and a ceramic input bypass capacitor of at least 1 µF to GND."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Regulator ground, which should connect directly to the bypass-capacitor grounds and be kept on its own ground plane for best PSRR and noise performance."
      },
      {
        "number": "4",
        "name": "OUT",
        "type": "output",
        "description": "Regulator output, which requires a ceramic output capacitor of at least 1 µF (recommended 2.2 µF, with a minimum effective 0.47 µF on the new chip) between OUT and GND for loop stability."
      },
      {
        "number": "5",
        "name": "NR/NC",
        "type": "input",
        "description": "On the old chip this is the noise-reduction pin, where an external capacitor of 0 to 100 nF (CNR, which must have minimal leakage) filters bandgap noise; on the new chip it is a no-connect pin that should be tied to GND or left floating."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that is also electrically tied to the SOT-223 thermal tab, which must be soldered to a large copper area on the board to dissipate heat."
      }
    ],
    "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: Pin 5 is listed as 'input (old chip) / no connect (new chip)' in the pin table, so the ERC type 'inp; Conflicting statements on NR availability for DCQ: Figure 4-2 and Table 4-1 give pin 5 as NR/FB/NC f; The DCQ GND pin numbers (3 and 6) are read from the table row 'GND 5, PAD 3、6' by column position; t"
        ],
        "pages_sent": 24,
        "cost_usd": 0.1048,
        "at": "2026-10-11T22:52:40"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps794",
        "pages": 51,
        "sha256": "84291eb77a7c37c6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8.475,
          6.7,
          1.6
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bf43e0f52215e5c8b069c660d1a580928edb1037d7f7155d98bb6d1df79e64ff",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps79428dcqr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.7,
          1.6
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "792013391ab3dcb19a2f2b4f5315cf723b66938aa1fd3c4f4a65c44b6587d01f",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}