A5970ADTR

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  "slug": "a5970adtr",
  "title": "A5970ADTR",
  "brief": "STMicroelectronics DC-DC Converters, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "power management (pmic)",
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  "component": {
    "mpn": "A5970ADTR",
    "manufacturer": "STMicroelectronics",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923896796499968",
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    "distributor_links": {
      "lcsc": "C2070806",
      "digikey": "497-A5970ADTR-ND",
      "mouser": "511-A5970ADTR"
    },
    "distributor_check": {
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    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulator output; the OUT pin DC voltage is rated -1 to 40 V, with a peak of -5 to 40 V at t = 0.1 s."
      },
      {
        "number": "2",
        "name": "SYNCH",
        "type": "input",
        "description": "Master/slave synchronization pin; it requires a high input of at least 2.5 V and a low input of at most 0.74 V, with absolute maximum range -0.3 to 4 V."
      },
      {
        "number": "3",
        "name": "INH",
        "type": "input",
        "description": "Active-high inhibit that disables the device (device OFF above 2.2 V, ON below 0.8 V); it must be grounded if unused, and an internal pull-up disables the device when it is open."
      },
      {
        "number": "4",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output used for frequency compensation of the loop."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Feedback input; connecting it directly to the output sets 1.23 V output, an external resistive divider is required for higher voltages, and analog pins are rated up to 4 V."
      },
      {
        "number": "6",
        "name": "VREF",
        "type": "power_out",
        "description": "3.3 V reference voltage output (±2%) that requires no capacitor for stability."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Unregulated DC input voltage with an operating range of 4 to 36 V and an absolute maximum of 40 V."
      }
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        "guard_notes": [
          "extractor flagged: Pin numbers and names are taken from Table 1 (Pin description) on page 4. The pin connection figure ; The ordering code A5970ADTR (tape and reel) maps to the SO8 package per Table 11 on page 41. The pin"
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        "cost_usd": 0.0406,
        "at": "2026-10-11T07:01:18"
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        "pages": 42,
        "sha256": "351925c80d2f3515",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SO-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
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          "name": "Input voltage",
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          "name": "SYNCH pin voltage",
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          "name": "Power dissipation",
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        {
          "name": "Operating junction temperature range",
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          "name": "Storage temperature range",
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        {
          "name": "Maximum thermal resistance junction ambient",
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          "kind": "thermal",
          "unit": "°C/W",
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          "typ": null,
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        {
          "name": "MOSFET on resistance",
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          "name": "Maximum limiting current",
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        {
          "name": "Switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
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          "typ": 500,
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          "name": "Duty cycle",
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          "name": "Voltage feedback",
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          "conditions": "Duty cycle = 0; VFB = 1.5 V",
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        {
          "name": "Total standby quiescent current",
          "symbol": "Iqst-by",
          "kind": "electrical",
          "unit": "µA",
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          "name": "INH threshold voltage, device ON",
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        {
          "name": "INH threshold voltage, device OFF",
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        {
          "name": "High level output voltage",
          "symbol": "VOH",
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          "min": 3.5,
          "typ": null,
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          "conditions": "VFB = 1 V",
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          "name": "Low level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
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          "max": 0.4,
          "conditions": "VFB = 1.5 V",
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        {
          "name": "Source output current",
          "symbol": "Io source",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 190,
          "max": 300,
          "conditions": "VCOMP = 1.9 V; VFB = 1 V",
          "source_page": 6,
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        {
          "name": "Sink output current",
          "symbol": "Io sink",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 1.5,
          "conditions": "VCOMP = 1.9 V; VFB = 1.5 V",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Source bias current",
          "symbol": "Ib",
          "kind": "electrical",
          "unit": "µA",
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          "typ": 2.5,
          "max": 4,
          "conditions": "",
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        {
          "name": "DC open loop gain",
          "symbol": "",
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          "unit": "dB",
          "min": null,
          "typ": 57,
          "max": null,
          "conditions": "RL = 50",
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        {
          "name": "Transconductance",
          "symbol": "gm",
          "kind": "electrical",
          "unit": "mS",
          "min": null,
          "typ": 2.3,
          "max": null,
          "conditions": "ICOMP = -0.1 mA to 0.1 mA; VCOMP = 1.9 V",
          "source_page": 6,
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        },
        {
          "name": "Synch high input voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
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          "conditions": "VCC = 4.4 to 36 V",
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          "name": "Synch low input voltage",
          "symbol": "",
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          "conditions": "VCC = 4.4 to 36 V",
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          "name": "Slave synch current",
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          "min": null,
          "typ": 0.21,
          "max": 0.45,
          "conditions": "Vsynch = 2.33 V",
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        {
          "name": "Master output amplitude",
          "symbol": "",
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          "min": 2.75,
          "typ": 3,
          "max": null,
          "conditions": "Isource = 3 mA",
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        {
          "name": "Output pulse width",
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          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": 0.2,
          "max": 0.35,
          "conditions": "no load, Vsynch = 1.65 V",
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