TX4150A

{
  "schema_version": 1,
  "type": "component",
  "slug": "tx4150a",
  "title": "TX4150A",
  "brief": "XDS DC-DC Converters, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tx4150a"
  ],
  "component": {
    "mpn": "TX4150A",
    "manufacturer": "XDS",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b84d1a88b364b2f76374ca01ca013d82.pdf",
    "parts": {
      "symbol": "tx4150a.kicad_sym",
      "footprint": "tx4150a.kicad_mod",
      "model_3d": "tx4150a-etched.glb",
      "model_3d_plain": "tx4150a.glb",
      "model_3d_step": "tx4150a-etched.step",
      "model_3d_step_plain": "tx4150a.step",
      "lbr": "tx4150a.lbr"
    },
    "distributor_links": {
      "lcsc": "C329265"
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Output current setting pin. A sense resistor (Rcs) from CS to GND programs the output constant-current limit and is also used by the internal line-drop (cable) compensation network."
      },
      {
        "number": "2",
        "name": "BST",
        "type": "passive",
        "description": "Bootstrap capacitor pin for the high-side N-MOSFET gate driver. A 100 nF ceramic capacitor is connected between BST and SW; the internal LDO charges it to approximately 5.3V when the low-side switch is on."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Switch node output. Common drain of the integrated high-side and low-side power MOSFETs; connect the external buck inductor here. Absolute maximum voltage is VDD+0.3V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground reference. Must be tied to the system ground plane; also internally connected to the exposed thermal pad (EP)."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip power supply input. Wide operating range 4.5V to 36V (36V absolute max); input over-voltage protection triggers at 33V (Vinovp). Decouple with low-ESR ceramic input capacitance close to the pin."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback input. Connect a resistor divider from VOUT so that FB regulates to the internal 0.9V reference (VREF). VFB_OVP output over-voltage threshold is 1.1×VFB. Absolute max 6V."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Chip enable input. Driving EN above its threshold turns the converter on; pulling it low places the part in shutdown. Do not leave floating: use a pull-up resistor, or a divider from VIN to program a higher input UVLO threshold. Absolute max 6V."
      },
      {
        "number": "8",
        "name": "LED",
        "type": "output",
        "description": "External LED indicator drive output (typ. status/charge indicator in USB-charger applications). Absolute max 6V."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "power_in",
        "description": "Exposed thermal pad on the bottom of the ESOP-8 package. Internally connected to GND; must be soldered to a PCB ground copper pour for proper thermal performance.",
        "source": "renumbered-to-footprint-pad"
      }
    ],
    "provenance": {
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        "url": "https://datasheet.lcsc.com/datasheet/pdf/b84d1a88b364b2f76374ca01ca013d82.pdf",
        "pages": 11,
        "sha256": "cf6b1936f63a5adb",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "XDS",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "9"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "cf6b1936f63a5adb",
      "rows": [
        {
          "name": "Input voltage VDD",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage on EN/CS/FB pins",
          "symbol": "V_MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "EN/CS/FB",
          "source_page": 4,
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        },
        {
          "name": "Output voltage on LED pin",
          "symbol": "V_MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "LED",
          "source_page": 4,
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        },
        {
          "name": "Voltage on BST pin",
          "symbol": "V_MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "BST",
          "source_page": 4,
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        },
        {
          "name": "Voltage on SW pin (lower limit)",
          "symbol": "V_MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "SW; upper limit printed as VDD+0.3 V (formula, not a number)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Maximum junction temperature",
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          "unit": "℃",
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        {
          "name": "Storage temperature",
          "symbol": "T_STG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Soldering temperature",
          "symbol": "T_TD",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "焊接，10秒左右",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Start-up minimum input voltage (UVLO rising)",
          "symbol": "VUVLO_up",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.4,
          "max": null,
          "conditions": "VDD=12V，TA=25℃ (table header)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-off voltage (UVLO falling)",
          "symbol": "VUVLO_down",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.3,
          "max": null,
          "conditions": "VDD=12V，TA=25℃ (table header)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis voltage",
          "symbol": "VUVLO_hys",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "VDD=12V，TA=25℃ (table header)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VFB=1.2V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Oscillator frequency",
          "symbol": "Fosc",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Feedback voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.9,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle",
          "symbol": "D_MAX",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 98,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum on-time",
          "symbol": "Ton",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-side switch current limit",
          "symbol": "Hs_Iocl",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "最小占空比",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-side switch current limit",
          "symbol": "Ls_Iocl",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input overvoltage protection threshold",
          "symbol": "Vinovp",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 33,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Overtemperature protection threshold",
          "symbol": "Thsd",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 155,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "Thsdhys",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-side switch on-resistance",
          "symbol": "RDS(ON)_H",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "IOUT = 1A，VOUT = 3.3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-side switch on-resistance",
          "symbol": "RDS(ON)_L",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 140,
          "max": null,
          "conditions": "IOUT = 1A, VOUT = 3.3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-side switch leakage current",
          "symbol": "I_leak_sw",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "VEN = 0V, VSW= 0V",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "TX4150A (XDS) component page with datasheet-verified CAD.",
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  "updated_at": "2026-09-25T13:16:58.733Z"
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