TPS65266RHBT

{
  "slug": "tps65266rhbt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tps65266rhbt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "tps65266rhbt.kicad_sym",
    "tps65266rhbt.kicad_mod",
    "tps65266rhbt.glb",
    "tps65266rhbt.step",
    "tps65266rhbt.lbr",
    "docs/hero.png",
    "docs/tps65266rhbt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tps65266rhbt-hero.glb",
    "tps65266rhbt-hero.overlay.json"
  ],
  "component": {
    "mpn": "TPS65266RHBT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps65266",
    "parts": {
      "symbol": "tps65266rhbt.kicad_sym",
      "footprint": "tps65266rhbt.kicad_mod",
      "model_3d": "tps65266rhbt-hero.glb",
      "model_3d_plain": "tps65266rhbt.glb",
      "model_3d_step": "tps65266rhbt-etched.step",
      "model_3d_step_plain": "tps65266rhbt.step",
      "lbr": "tps65266rhbt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071484",
      "digikey": "296-38685-2-ND",
      "mouser": "595-TPS65266RHBT"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T03:18:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-38685-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS65266RHBT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; the datasheet gives no separate limits for this pin, and analog ground must be routed separately from high-current power grounds."
      },
      {
        "number": "2",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; the datasheet gives no separate limits for this pin, and analog ground must be routed separately from high-current power grounds."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin; the datasheet gives no separate limits for this pin, and analog ground must be routed separately from high-current power grounds."
      },
      {
        "number": "4",
        "name": "PGOOD",
        "type": "output",
        "description": "Open-drain power-good output that asserts low if a buck output is outside its regulation range due to thermal shutdown, overcurrent, undervoltage, or ENx low."
      },
      {
        "number": "5",
        "name": "VINQ",
        "type": "power_in",
        "description": "Input voltage for the converter controller and reference bias (2.7 V to 6.5 V recommended); TI recommends a 1-µF capacitor from this pin to analog ground placed as near as possible to the pin."
      },
      {
        "number": "6",
        "name": "FB2",
        "type": "input",
        "description": "Kelvin-sensing feedback input for the buck2 output voltage, connected to the buck2 feedback resistor divider."
      },
      {
        "number": "7",
        "name": "COMP2",
        "type": "passive",
        "description": "Error-amplifier output and loop-compensation pin for buck2, compensated with a series resistor and capacitor in peak-current PWM mode."
      },
      {
        "number": "8",
        "name": "SS2",
        "type": "passive",
        "description": "Soft-start and tracking input for buck2 with an internal 5.5-µA pullup; the soft-start time is set by a capacitor from this pin to ground."
      },
      {
        "number": "9",
        "name": "BST2",
        "type": "power_out",
        "description": "Bootstrap supply for the buck2 high-side gate driver; connect a 47-nF (recommended) capacitor from BST2 to LX2."
      },
      {
        "number": "10",
        "name": "LX2",
        "type": "output",
        "description": "Switching node for buck2 connecting to the inductor and bootstrap capacitor, swinging from a diode drop below ground up to the VIN2 voltage."
      },
      {
        "number": "11",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground for buck2, to be connected as close as practical to the negative terminal of the VIN2 input ceramic capacitor."
      },
      {
        "number": "12",
        "name": "VIN2",
        "type": "power_in",
        "description": "Input power supply for buck2, to be connected as close as practical to the positive terminal of an input ceramic capacitor (10 µF suggested)."
      },
      {
        "number": "13",
        "name": "VIN3",
        "type": "power_in",
        "description": "Input power supply for buck3, to be connected as close as practical to the positive terminal of an input ceramic capacitor (10 µF suggested)."
      },
      {
        "number": "14",
        "name": "PGND3",
        "type": "power_in",
        "description": "Power ground for buck3, to be connected as close as practical to the negative terminal of the VIN3 input ceramic capacitor."
      },
      {
        "number": "15",
        "name": "LX3",
        "type": "output",
        "description": "Switching node for buck3 connecting to the inductor and bootstrap capacitor, swinging from a diode drop below ground up to the VIN3 voltage."
      },
      {
        "number": "16",
        "name": "BST3",
        "type": "power_out",
        "description": "Bootstrap supply for the buck3 high-side gate driver; connect a 47-nF (recommended) capacitor from BST3 to LX3."
      },
      {
        "number": "17",
        "name": "SS3",
        "type": "passive",
        "description": "Soft-start and tracking input for buck3 with an internal 5.5-µA pullup; the soft-start time is set by a capacitor from this pin to ground."
      },
      {
        "number": "18",
        "name": "COMP3",
        "type": "passive",
        "description": "Error-amplifier output and loop-compensation pin for buck3, compensated with a series resistor and capacitor in peak-current PWM mode."
      },
      {
        "number": "19",
        "name": "FB3",
        "type": "input",
        "description": "Kelvin-sensing feedback input for the buck3 output voltage, connected to the buck3 feedback resistor divider."
      },
      {
        "number": "20",
        "name": "ROSC",
        "type": "passive",
        "description": "Oscillator frequency programming pin; an external resistor connected here sets the switching frequency."
      },
      {
        "number": "21",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground common to the buck controllers and other analog circuits, to be routed separately from high-current power grounds to the negative terminal of the VINQ bypass capacitor."
      },
      {
        "number": "22",
        "name": "FB1",
        "type": "input",
        "description": "Kelvin-sensing feedback input for the buck1 output voltage, connected to the buck1 feedback resistor divider."
      },
      {
        "number": "23",
        "name": "COMP1",
        "type": "passive",
        "description": "Error-amplifier output and loop-compensation pin for buck1, compensated with a series resistor and capacitor in peak-current PWM mode."
      },
      {
        "number": "24",
        "name": "SS1",
        "type": "passive",
        "description": "Soft-start and tracking input for buck1 with an internal 5.5-µA pullup; the soft-start time is set by a capacitor from this pin to ground."
      },
      {
        "number": "25",
        "name": "BST1",
        "type": "power_out",
        "description": "Bootstrap supply for the buck1 high-side gate driver; connect a 47-nF (recommended) capacitor from BST1 to LX1."
      },
      {
        "number": "26",
        "name": "LX1",
        "type": "output",
        "description": "Switching node for buck1 connecting to the inductor and bootstrap capacitor, swinging from a diode drop below ground up to the VIN1 voltage."
      },
      {
        "number": "27",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground for buck1, to be connected as close as practical to the negative terminal of the VIN1 input ceramic capacitor."
      },
      {
        "number": "28",
        "name": "VIN1",
        "type": "power_in",
        "description": "Input power supply for buck1, to be connected as close as practical to the positive terminal of an input ceramic capacitor (10 µF suggested)."
      },
      {
        "number": "29",
        "name": "EN1",
        "type": "input",
        "description": "Enable for buck1; float to enable, and a resistor divider can be used to adjust its input undervoltage lockout."
      },
      {
        "number": "30",
        "name": "EN2",
        "type": "input",
        "description": "Enable for buck2; float to enable, and a resistor divider can be used to adjust its input undervoltage lockout."
      },
      {
        "number": "31",
        "name": "EN3",
        "type": "input",
        "description": "Enable for buck3; float to enable, and a resistor divider can be used to adjust its input undervoltage lockout."
      },
      {
        "number": "32",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "33",
        "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: The exposed thermal pad is not given a numeric pin number in the datasheet pin table (it is describe; The datasheet gives only the name 'Analog ground pin' for pins 1-3 with no further function or limit; The datasheet does not give an explicit ERC type for the BST pins; power_out was chosen because they",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0701,
        "at": "2026-10-12T03:18:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps65266",
        "pages": 42,
        "sha256": "76c5a2fb9d90a942",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tps65266rhbt.step",
        "role": "plain",
        "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": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps65266rhbt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "d5e7b89ab2fa3dddb417fdbf9f889f5d8692d72394b9feccdde67a6333bfd017",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}