LMR14020SDDAR

{
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  "type": "component",
  "slug": "lmr14020sddar",
  "title": "LMR14020SDDAR",
  "brief": "Texas Instruments DC-DC Converters, HSOP-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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    "pmic",
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  "component": {
    "mpn": "LMR14020SDDAR",
    "manufacturer": "Texas Instruments",
    "package": "HSOP-8-EP",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lmr14020sddar.pdf",
    "parts": {
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    },
    "distributor_links": {
      "digikey": "296-44320-2-ND",
      "lcsc": "C187824"
    },
    "pins": [
      {
        "number": "1",
        "name": "BOOT",
        "type": "passive",
        "description": "Bootstrap capacitor connection for the internal high-side MOSFET gate driver. Connect a high-quality 0.1 µF capacitor from BOOT to SW. Absolute max 49 V to GND, 6.5 V to SW."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input, 4 V to 40 V recommended operating range (44 V abs max). Connect to power supply and place high-frequency bypass capacitor CIN close to the VIN pin with short return to GND."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Precision enable input with internal pull-up current source (~1 µA). Pull below 1.2 V (typ threshold) to disable; float or connect to VIN to enable. Can set programmable UVLO with a two-resistor divider from VIN."
      },
      {
        "number": "4",
        "name": "RT/SYNC",
        "type": "bidirectional",
        "description": "Resistor timing or external clock synchronization input. In RT mode an external resistor to GND sets the switching frequency (200 kHz-2.5 MHz). When driven above the PLL upper threshold (~1.7 V) the pin auto-switches to SYNC mode and locks the internal PLL to the external clock (250 kHz-2.3 MHz). Max 3.6 V to GND."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback input pin. Connect to the output feedback divider to set VOUT; internal reference VFB = 0.750 V (typ). Do not short to ground during operation. Max 7 V to GND."
      },
      {
        "number": "6",
        "name": "SS",
        "type": "passive",
        "description": "External soft-start control pin. Connect a capacitor from SS to GND to set the soft-start ramp time; internal charge current ISS ≈ 3 µA."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "System ground return pin. Must be tied to the PCB ground plane along with the thermal pad."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "power_out",
        "description": "Switching-node output; internally connected to the drain of the high-side power MOSFET. Connect to the power inductor and to the cathode of the external freewheeling (catch) diode. Rated -1 V to 40 V operating, -3 V to 44 V abs max."
      },
      {
        "number": "9",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed thermal pad on the underside of the HSOIC-8 (DDA) package. Major heat-dissipation path of the die; must be soldered to the PCB ground plane for both thermal performance and electrical ground."
      }
    ],
    "provenance": {
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        "pages": 31,
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        "source_tier": "mfr"
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      "pins": {
        "total": 9,
        "described": 9,
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        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HSOP-8-EP",
      "Category": "PMIC",
      "Pins": "9"
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    "characteristics": {
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          "name": "VIN operation input voltage",
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        {
          "name": "UVLO rising threshold",
          "symbol": "UVLO",
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          "min": 3.5,
          "typ": 3.7,
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        {
          "name": "Shutdown supply current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 3,
          "conditions": "VEN = 0 V, TA = 25°C, 4.0 V ≤ VIN ≤ 40 V",
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        },
        {
          "name": "EN threshold voltage",
          "symbol": "VEN_TH",
          "kind": "electrical",
          "unit": "V",
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        {
          "name": "Feedback voltage",
          "symbol": "VFB",
          "kind": "electrical",
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          "min": 0.744,
          "typ": 0.75,
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          "conditions": "TJ = 25°C",
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          "min": 0.735,
          "typ": 0.75,
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          "conditions": "TJ = -40°C to 125°C",
          "source_page": 5,
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        {
          "name": "High-side MOSFET on-resistance",
          "symbol": "RDS_ON",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 90,
          "max": 180,
          "conditions": "VIN = 12 V, BOOT to SW = 5.8 V",
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        {
          "name": "High-side MOSFET current limit",
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          "kind": "electrical",
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          "typ": 3.2,
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          "conditions": "VIN = 12 V, TA = 25°C, Open Loop",
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        {
          "name": "Switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 400,
          "typ": 500,
          "max": 600,
          "conditions": "RT = 49.9 kΩ, 1% accuracy",
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        {
          "name": "Input voltage operating range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 40,
          "conditions": "Buck regulator",
          "source_page": 4,
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        {
          "name": "Output voltage",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": 28,
          "conditions": "",
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        {
          "name": "SW pin voltage",
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          "min": -1,
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          "conditions": "",
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          "name": "FB pin voltage",
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          "kind": "recommended_operating",
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          "min": 0,
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        {
          "name": "EN pin voltage",
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          "kind": "recommended_operating",
          "unit": "V",
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          "max": 40,
          "conditions": "",
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        {
          "name": "RT/SYNC pin voltage",
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        {
          "name": "Switching frequency range in RT mode",
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          "unit": "kHz",
          "min": 200,
          "typ": null,
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        {
          "name": "Switching frequency range in SYNC mode",
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          "unit": "kHz",
          "min": 250,
          "typ": null,
          "max": 2300,
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        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "VIN, EN to GND",
          "symbol": "VIN, EN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
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          "conditions": "to GND",
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        {
          "name": "BOOT to GND",
          "symbol": "BOOT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 49,
          "conditions": "to GND",
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        {
          "name": "SS to GND",
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          "min": -0.3,
          "typ": null,
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        {
          "name": "FB to GND",
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          "min": -0.3,
          "typ": null,
          "max": 7,
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        {
          "name": "RT/SYNC to GND",
          "symbol": "RT/SYNC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "to GND",
          "source_page": 4,
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        {
          "name": "BOOT to SW",
          "symbol": "BOOT-SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "to SW",
          "source_page": 4,
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        {
          "name": "SW to GND",
          "symbol": "SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -3,
          "typ": null,
          "max": 44,
          "conditions": "to GND",
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        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 42.5,
          "max": null,
          "conditions": "DDA package, 8 pins",
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        {
          "name": "Junction-to-top characterization parameter",
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          "kind": "thermal",
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          "min": null,
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          "conditions": "DDA package, 8 pins",
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        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 25.4,
          "max": null,
          "conditions": "DDA package, 8 pins",
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          "name": "Junction-to-case (top) thermal resistance",
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