TX4120XH

{
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  "type": "component",
  "slug": "tx4120xh",
  "title": "TX4120XH",
  "brief": "XDS DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "tx4120xh"
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  "component": {
    "mpn": "TX4120XH",
    "manufacturer": "XDS",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2112161930_XDS-TX4120XH_C2923805.pdf",
    "parts": {
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      "lbr": "tx4120xh.lbr"
    },
    "distributor_links": {
      "lcsc": "C2923805"
    },
    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Feedback input. Senses the output voltage via an external resistor divider between VOUT and GND. High-impedance sensitive node; route away from SW and BST. When CS is floating or tied to VOUT, FB is connected directly to VOUT because the internal divider sets the output voltage."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the IC and the low-side power switch."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input to the IC. Accepts 4.5V to 36V (recommended 6.5V-30V, absolute max 36V; 33V input OVP). Bypass with a large bulk capacitor and at least one 0.1µF ceramic capacitor close to the VIN and GND pins to suppress input noise."
      },
      {
        "number": "4",
        "name": "SW",
        "type": "output",
        "description": "Power switch node. Connects to the switching node of the external inductor (junction of the high-side and low-side integrated MOSFETs). Absolute max range −1V to VIN+0.3V."
      },
      {
        "number": "5",
        "name": "BST",
        "type": "passive",
        "description": "Bootstrap pin for the high-side gate driver. Connect a 0.1µF (or larger) capacitor between SW and BST to supply the high-side MOSFET gate driver. Absolute max VBST−VSW = 6V."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "Current-sense input and mode-select pin. Connect a 10mΩ-100mΩ sense resistor between CS and GND to program the output current limit and enable CC-loop operation (Mode 1); the R1 in Figure 1 can be used for programmed line-drop compensation. Alternatively tie CS to VOUT or leave floating (Mode 0) to disable the CC loop and line-drop compensation - the internal divider then automatically sets VOUT to ~5.1V for minimum external components."
      }
    ],
    "provenance": {
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
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        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
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      "source": "silk-marker",
      "derived_from": "SOT-23-6@sha256:f341c73aac9dcb55",
      "mark": "drawn"
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      "Package": "SOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
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        {
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        {
          "name": "VLED to GND",
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        {
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          "name": "TL 引线温度",
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        {
          "name": "HBM 人体模型",
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          "unit": "kV",
          "min": 2,
          "typ": null,
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        {
          "name": "CDM 充电器设备型号",
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          "name": "VIN to GND",
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          "name": "FB",
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        {
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          "name": "输出电流 IOUT",
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        {
          "name": "高边开关漏电流",
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          "kind": "electrical",
          "unit": "µA",
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          "max": 10,
          "conditions": "VEN = 0V, VSW= 0V",
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        {
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        {
          "name": "最大占空比",
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        {
          "name": "最短准点时间",
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          "name": "欠压锁定下降阈值",
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        {
          "name": "欠压锁定迟滞",
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        {
          "name": "工作静态电流",
          "symbol": "IQ-NONSW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VFB =0.9V",
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        {
          "name": "降压振荡器频率",
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          "min": null,
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        {
          "name": "反馈电压",
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        {
          "name": "下开关电流限制",
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