TPS65279RHHR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tps65279rhhr",
  "title": "TPS65279RHHR",
  "brief": "Texas Instruments DC-DC Converters, VQFN-36-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "tps65279rhhr",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "TPS65279RHHR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-36-EP(6x6)",
    "pin_count": 37,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps65279",
    "parts": {
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      "footprint": "tps65279rhhr.kicad_mod",
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      "lbr": "tps65279rhhr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2071639",
      "digikey": "296-40891-2-ND",
      "mouser": "595-TPS65279RHHR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T22:23:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-40891-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TPS65279RHHR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PVIN2",
        "type": "power_in",
        "description": "Power input supplying the power switches of converter 2 (buck2)."
      },
      {
        "number": "2",
        "name": "PVIN2",
        "type": "power_in",
        "description": "Power input supplying the power switches of converter 2 (buck2)."
      },
      {
        "number": "3",
        "name": "ISHARE",
        "type": "input",
        "description": "Logic pin selecting current-sharing mode: tie high to parallel the two buck converters (buck1 is used), tie low for separate operation."
      },
      {
        "number": "4",
        "name": "MODE",
        "type": "input",
        "description": "Ground connection forces continuous conduction mode (CCM); connection to V7V enables pulse-skipping mode (PSM) at light load."
      },
      {
        "number": "5",
        "name": "V7V",
        "type": "power_out",
        "description": "Internal LDO output regulating to a typical 6.3 V for driver and control circuits; decouple to power ground with a minimum 1 µF ceramic capacitor, and V7V is slightly below VIN if VIN is lower than 6.3 V."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input for the internal LDO and controllers, specified at 4.5 V to 18 V."
      },
      {
        "number": "7",
        "name": "PVIN1",
        "type": "power_in",
        "description": "Power input supplying the power switches of converter 1 (buck1)."
      },
      {
        "number": "8",
        "name": "PVIN1",
        "type": "power_in",
        "description": "Power input supplying the power switches of converter 1 (buck1)."
      },
      {
        "number": "9",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground of buck1; place the input capacitor ground as close as possible to this pin."
      },
      {
        "number": "10",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground of buck1; place the input capacitor ground as close as possible to this pin."
      },
      {
        "number": "11",
        "name": "PGND1",
        "type": "power_in",
        "description": "Power ground of buck1; place the input capacitor ground as close as possible to this pin."
      },
      {
        "number": "12",
        "name": "PGOOD1",
        "type": "output",
        "description": "Open-drain power-good output for buck1 that goes high impedance when output is in range; a 100 kΩ pull-up resistor is recommended."
      },
      {
        "number": "13",
        "name": "PGOOD2",
        "type": "output",
        "description": "Open-drain power-good output for buck2 that goes high impedance when output is in range; a 100 kΩ pull-up resistor is recommended."
      },
      {
        "number": "14",
        "name": "FB1",
        "type": "input",
        "description": "Feedback sense input for buck1 output via resistor divider, with a 0.6 V ±1% reference; absolute maximum 3.6 V."
      },
      {
        "number": "15",
        "name": "RLIM1",
        "type": "input",
        "description": "Current-limit threshold set pin for buck1; a resistor to GND sets the overcurrent protection level."
      },
      {
        "number": "16",
        "name": "BST1",
        "type": "power_out",
        "description": "Bootstrap capacitor pin between BST1 and LX1 that supplies the high-side MOSFET gate drive; absolute maximum 7 V referenced to LX1."
      },
      {
        "number": "17",
        "name": "LX1",
        "type": "output",
        "description": "Switching node of buck1; absolute maximum −4.5 V to 23 V (transient below 20 ns)."
      },
      {
        "number": "18",
        "name": "LX1",
        "type": "output",
        "description": "Switching node of buck1; absolute maximum −4.5 V to 23 V (transient below 20 ns)."
      },
      {
        "number": "19",
        "name": "LX1",
        "type": "output",
        "description": "Switching node of buck1; absolute maximum −4.5 V to 23 V (transient below 20 ns)."
      },
      {
        "number": "20",
        "name": "SS1",
        "type": "passive",
        "description": "Soft-start and tracking pin for buck1 whose external capacitor sets the reference rise time; voltage here overrides the internal reference, and in current-sharing use it serves as soft-start; absolute maximum 3.6 V."
      },
      {
        "number": "21",
        "name": "COMP1",
        "type": "passive",
        "description": "Error amplifier output and loop compensation pin for buck1; in current-sharing use it serves as the compensation pin; absolute maximum 3.6 V."
      },
      {
        "number": "22",
        "name": "ROSC",
        "type": "input",
        "description": "Oscillator frequency programming pin set by an external resistor (200 kHz to 1.6 MHz); it synchronizes to an external clock when one is applied."
      },
      {
        "number": "23",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground of the controllers; must be tied to power ground at a single point at the V7V capacitor return per the layout guidance."
      },
      {
        "number": "24",
        "name": "COMP2",
        "type": "passive",
        "description": "Error amplifier output and loop compensation pin for buck2; float this pin in current-sharing mode; absolute maximum 3.6 V."
      },
      {
        "number": "25",
        "name": "SS2",
        "type": "passive",
        "description": "Soft-start and tracking pin for buck2 whose external capacitor sets the reference rise time; float this pin in current-sharing mode; absolute maximum 3.6 V."
      },
      {
        "number": "26",
        "name": "LX2",
        "type": "output",
        "description": "Switching node of buck2; absolute maximum −4.5 V to 23 V (transient below 20 ns)."
      },
      {
        "number": "27",
        "name": "LX2",
        "type": "output",
        "description": "Switching node of buck2; absolute maximum −4.5 V to 23 V (transient below 20 ns)."
      },
      {
        "number": "28",
        "name": "LX2",
        "type": "output",
        "description": "Switching node of buck2; absolute maximum −4.5 V to 23 V (transient below 20 ns)."
      },
      {
        "number": "29",
        "name": "BST2",
        "type": "power_out",
        "description": "Bootstrap capacitor pin between BST2 and LX2 that supplies the high-side MOSFET gate drive; absolute maximum 7 V referenced to LX2."
      },
      {
        "number": "30",
        "name": "RLIM2",
        "type": "input",
        "description": "Current-limit threshold set pin for buck2; a resistor to GND sets the overcurrent protection level."
      },
      {
        "number": "31",
        "name": "FB2",
        "type": "input",
        "description": "Feedback sense input for buck2 output via resistor divider, with a 0.6 V ±1% reference; connect to ground in current-sharing mode; absolute maximum 3.6 V."
      },
      {
        "number": "32",
        "name": "EN1",
        "type": "input",
        "description": "Enable pin for buck1 that also sets input undervoltage lockout via two resistors; enable voltage range 0 V to 6 V."
      },
      {
        "number": "33",
        "name": "EN2",
        "type": "input",
        "description": "Enable pin for buck2 that also sets input undervoltage lockout via two resistors; enable voltage range 0 V to 6 V."
      },
      {
        "number": "34",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground of buck2; place the input capacitor ground as close as possible to this pin."
      },
      {
        "number": "35",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground of buck2; place the input capacitor ground as close as possible to this pin."
      },
      {
        "number": "36",
        "name": "PGND2",
        "type": "power_in",
        "description": "Power ground of buck2; place the input capacitor ground as close as possible to this pin."
      },
      {
        "number": "37",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed thermal pad connected to power ground that must be soldered to the board with as many vias as possible; no electrical signal is bonded to it inside the package."
      }
    ],
    "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 datasheet pin table merges the SS1 row (HTSSOP 22, 27; VQFN 20, 25). The SS2 row lists VQFN 25, ; The exposed thermal pad is listed as pin 37 in the VQFN column of the pin table, outside the 36 numb; Pin types for BST1/BST2 (power_out), V7V (power_out), and SS/COMP (passive) are inferred from their "
        ],
        "pages_sent": 9,
        "cost_usd": 0.092,
        "at": "2026-10-07T22:23:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps65279",
        "pages": 42,
        "sha256": "f4d0f302ae36ca39",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 37,
        "described": 37,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tps65279rhhr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6212c4fd2463ccb7c6ae2c35f5e24c80884153fcaeaf8e86549c0e49087bc8bb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tps65279rhhr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7b30e6e1081dc96328cda5d0c407ce24f7dd552c25db2d717422dc15efa8c965",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-36-EP(6x6)",
      "Category": "Power Management (PMIC)",
      "Pins": "37"
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "TPS65279RHHR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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