TPS6521815RSLR

{
  "slug": "tps6521815rslr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Power Management - Specialized, VQFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps6521815rslr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tps6521815rslr.kicad_sym",
    "tps6521815rslr.kicad_mod",
    "tps6521815rslr.glb",
    "tps6521815rslr.step",
    "tps6521815rslr.lbr",
    "docs/hero.png",
    "docs/tps6521815rslr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps6521815rslr-hero.glb",
    "tps6521815rslr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TPS6521815RSLR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-48-EP(6x6)",
    "pin_count": 49,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Management - Specialized",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps6521815",
    "parts": {
      "symbol": "tps6521815rslr.kicad_sym",
      "footprint": "tps6521815rslr.kicad_mod",
      "model_3d": "tps6521815rslr-hero.glb",
      "model_3d_plain": "tps6521815rslr.glb",
      "model_3d_step": "tps6521815rslr-etched.step",
      "model_3d_step_plain": "tps6521815rslr.step",
      "lbr": "tps6521815rslr.lbr"
    },
    "distributor_links": {
      "lcsc": "C1852160",
      "digikey": "296-TPS6521815RSLRTR-ND",
      "mouser": "595-TPS6521815RSLR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T21:09:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TPS6521815RSLRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS6521815RSLR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN_DCDC1",
        "type": "power_in",
        "description": "Input supply pin for DCDC1."
      },
      {
        "number": "2",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Data line for the I2C interface; connect to a pullup resistor."
      },
      {
        "number": "3",
        "name": "SCL",
        "type": "input",
        "description": "Clock input for the I2C interface; connect to a pullup resistor."
      },
      {
        "number": "4",
        "name": "LDO1",
        "type": "power_out",
        "description": "Output voltage pin for LDO1; connect to a capacitor."
      },
      {
        "number": "5",
        "name": "IN_LDO1",
        "type": "power_in",
        "description": "Input supply pin for LDO1."
      },
      {
        "number": "6",
        "name": "IN_LS3",
        "type": "power_in",
        "description": "Input supply pin for load switch 3."
      },
      {
        "number": "7",
        "name": "LS3",
        "type": "power_out",
        "description": "Output voltage pin for load switch 3; connect to a capacitor."
      },
      {
        "number": "8",
        "name": "PGOOD",
        "type": "output",
        "description": "Power-good output, configured as open drain; pulled low when DCDC1-4 or LDO1 are out of regulation, and load switches and DCDC5-6 do not affect it."
      },
      {
        "number": "9",
        "name": "AC_DET",
        "type": "input",
        "description": "AC monitor input and enable for DCDC1-4, LDO1 and load switches; tie to IN_BIAS if not used."
      },
      {
        "number": "10",
        "name": "nPFO",
        "type": "output",
        "description": "Power-fail comparator output, deglitched (open drain); pulled low when the PFI input is below the power-fail threshold."
      },
      {
        "number": "11",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "Configured as DDR reset input (driving GPO2) or as a general-purpose open-drain output."
      },
      {
        "number": "12",
        "name": "IN_DCDC4",
        "type": "power_in",
        "description": "Input supply pin for DCDC4."
      },
      {
        "number": "13",
        "name": "L4A",
        "type": "power_out",
        "description": "Switch pin for DCDC4; connect to inductor."
      },
      {
        "number": "14",
        "name": "L4B",
        "type": "power_out",
        "description": "Switch pin for DCDC4; connect to inductor."
      },
      {
        "number": "15",
        "name": "DCDC4",
        "type": "power_out",
        "description": "Output voltage pin for DCDC4; connect to a capacitor."
      },
      {
        "number": "16",
        "name": "PFI",
        "type": "input",
        "description": "Power-fail comparator input; connect to a resistor divider."
      },
      {
        "number": "17",
        "name": "DC34_SEL",
        "type": "input",
        "description": "Power-up default selection pin for DCDC3 or DCDC4; the default is programmed by a resistor connected to ground."
      },
      {
        "number": "18",
        "name": "IN_nCC",
        "type": "output",
        "description": "Push-pull output that is pulled low when the PMIC is powered from the coin cell (CC) and pulled high when powered from the main supply (IN_BU), indicating the source of DCDC5 and DCDC6."
      },
      {
        "number": "19",
        "name": "PGOOD_BU",
        "type": "output",
        "description": "Push-pull power-good output for DCDC5 and DCDC6; pulled low when either rail is out of regulation and pulled high (to the DCDC6 output voltage) when both are in regulation."
      },
      {
        "number": "20",
        "name": "L5",
        "type": "power_out",
        "description": "Switch pin for DCDC5; connect to inductor."
      },
      {
        "number": "21",
        "name": "FB5",
        "type": "input",
        "description": "Feedback voltage pin for DCDC5; connect to the output capacitor."
      },
      {
        "number": "22",
        "name": "FB6",
        "type": "input",
        "description": "Feedback voltage pin for DCDC6; connect to the output capacitor."
      },
      {
        "number": "23",
        "name": "L6",
        "type": "power_out",
        "description": "Switch pin for DCDC6; connect to inductor."
      },
      {
        "number": "24",
        "name": "SYS_BU",
        "type": "power_out",
        "description": "System voltage pin for the battery-backup supply power path; connect to a 1-µF capacitor, and connecting any external load to this pin is not recommended."
      },
      {
        "number": "25",
        "name": "CC",
        "type": "power_in",
        "description": "Coin-cell battery input that supplies DCDC5 and DCDC6 if no voltage is applied to IN_BU; tie to ground if not in use."
      },
      {
        "number": "26",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "Configured as warm reset (negative edge) for DCDC1 and DCDC2, or as a general-purpose open-drain output."
      },
      {
        "number": "27",
        "name": "IN_BU",
        "type": "power_in",
        "description": "Default input supply pin for the battery-backup supplies (DCDC5 and DCDC6)."
      },
      {
        "number": "28",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connect; leave pin floating."
      },
      {
        "number": "29",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connect; leave pin floating."
      },
      {
        "number": "30",
        "name": "LS1",
        "type": "power_out",
        "description": "Output voltage pin for load switch 1; connect to a capacitor."
      },
      {
        "number": "31",
        "name": "IN_LS1",
        "type": "power_in",
        "description": "Input supply pin for load switch 1."
      },
      {
        "number": "32",
        "name": "IN_LS2",
        "type": "power_in",
        "description": "Input supply pin for load switch 2."
      },
      {
        "number": "33",
        "name": "LS2",
        "type": "power_out",
        "description": "Output voltage pin for load switch 2; connect to a capacitor."
      },
      {
        "number": "34",
        "name": "GPO2",
        "type": "output",
        "description": "Configured as DDR reset signal (controlled by GPIO1) or as a general-purpose output; the buffer can be configured as push-pull or open-drain."
      },
      {
        "number": "35",
        "name": "INT_LDO",
        "type": "power_out",
        "description": "Internal bias voltage; connect to a 1-µF capacitor, and TI does not recommend connecting any external load to this pin."
      },
      {
        "number": "36",
        "name": "IN_BIAS",
        "type": "power_in",
        "description": "Input supply pin for the reference system."
      },
      {
        "number": "37",
        "name": "IN_DCDC3",
        "type": "power_in",
        "description": "Input supply pin for DCDC3."
      },
      {
        "number": "38",
        "name": "L3",
        "type": "power_out",
        "description": "Switch pin for DCDC3; connect to inductor."
      },
      {
        "number": "39",
        "name": "FB3",
        "type": "input",
        "description": "Feedback voltage pin for DCDC3; connect to the output capacitor."
      },
      {
        "number": "40",
        "name": "nWAKEUP",
        "type": "output",
        "description": "Signal to the SoC indicating a power-on event (active low, open-drain output)."
      },
      {
        "number": "41",
        "name": "FB2",
        "type": "input",
        "description": "Feedback voltage pin for DCDC2; connect to the output capacitor."
      },
      {
        "number": "42",
        "name": "L2",
        "type": "power_out",
        "description": "Switch pin for DCDC2; connect to inductor."
      },
      {
        "number": "43",
        "name": "IN_DCDC2",
        "type": "power_in",
        "description": "Input supply pin for DCDC2."
      },
      {
        "number": "44",
        "name": "PB",
        "type": "input",
        "description": "Push-button monitor input, typically connected to a momentary switch to ground (active low)."
      },
      {
        "number": "45",
        "name": "nINT",
        "type": "output",
        "description": "Interrupt output (active low, open drain); pulled low when an interrupt bit is set and returns to Hi-Z after the causing bit is read; interrupts can be masked."
      },
      {
        "number": "46",
        "name": "PWR_EN",
        "type": "input",
        "description": "Power enable input for DCDC1-4, LDO1 and load switches."
      },
      {
        "number": "47",
        "name": "FB1",
        "type": "input",
        "description": "Feedback voltage pin for DCDC1; connect to the output capacitor."
      },
      {
        "number": "48",
        "name": "L1",
        "type": "power_out",
        "description": "Switch pin for DCDC1; connect to inductor."
      },
      {
        "number": "49",
        "name": "Thermal Pad",
        "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: The exposed thermal pad is not given a numbered pin on the package; it is labeled 'Thermal Pad' with; The datasheet types these pins as 'P' (power) and 'O' (output) without a KiCad class; they were mapp; Table 6-1 lists pin 18 (IN_nCC) as type 'O' but the description says push-pull; it was mapped to out",
          "exposed pad 49 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0884,
        "at": "2026-10-11T21:08:41"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps6521815",
        "pages": 94,
        "sha256": "c3fb29c15ae8ea67",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tps6521815rslr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.02,
          6.02,
          0.9
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3db59a6ff6312ff99b9462dbe9c7851972b4a9ba13acffc9facce8bffdb56bb1",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps6521815rslr-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": "5968a99c5a379179e7441f63ef10547a358b00668566235a74e648f7c2ea8eaa",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}