component
A6985F
Public Made by Adomby adom
STMicroelectronics DC-DC Converters, TSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"type": "component",
"slug": "a6985f",
"title": "A6985F",
"brief": "STMicroelectronics DC-DC Converters, TSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"manufacturer": "STMicroelectronics",
"package": "TSSOP-16-EP",
"pin_count": 17,
"category": "Power Supply Chip",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.st.com/resource/en/datasheet/a6985f.pdf",
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"lbr": "a6985f.lbr"
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"distributor_links": {
"lcsc": "C1356036",
"digikey": "497-15935-5-ND",
"mouser": "511-A6985F"
},
"distributor_check": {
"checked_at": "2026-10-11T03:44:52Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-15935-5-ND",
"status": "found",
"lifecycle": "Active"
},
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"pn": "511-A6985F",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "RST",
"type": "output",
"description": "Open-collector reset output that is driven low when the output voltage is out of regulation and released after the adjustable DELAY once VOUT is above the active delay threshold."
},
{
"number": "2",
"name": "VCC",
"type": "power_out",
"description": "Internal LDO output that supplies the embedded analog circuitry; connect a ceramic capacitor of at least 470 nF to filter the internal voltage reference."
},
{
"number": "3",
"name": "SS/INH",
"type": "bidirectional",
"description": "Soft-start and inhibit node: an open-collector stage clamping this pin to GND disables the device, and an internal current generator (4 µA typ.) charges the external soft-start capacitor."
},
{
"number": "4",
"name": "SYNCH/ISKP",
"type": "input",
"description": "Master/slave synchronization input in LNM and current-level skip select in LCM; leave floating when not used in LNM."
},
{
"number": "5",
"name": "FSW",
"type": "input",
"description": "Switching frequency strap: a pull-up resistor (E24 series) to VCC or pull-down to GND selects fSW, and pinstrapping is active only before the soft-start phase."
},
{
"number": "6",
"name": "MLF",
"type": "input",
"description": "Strap pin: a pull-up (E24 series) to VCC or pull-down to GND selects low noise or low consumption mode and the active RST threshold, active only before the soft-start phase."
},
{
"number": "7",
"name": "COMP",
"type": "passive",
"description": "Output of the error amplifier, where the designed compensation network is connected."
},
{
"number": "8",
"name": "DELAY",
"type": "passive",
"description": "An external capacitor sets the delay before RST is released after VOUT exceeds the reset threshold; if left floating, RST behaves like a power good."
},
{
"number": "9",
"name": "VOUT",
"type": "input",
"description": "Output voltage sensing input."
},
{
"number": "10",
"name": "SGND",
"type": "power_in",
"description": "Signal ground; the exposed pad must be connected to SGND and PGND."
},
{
"number": "11",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the output power stage."
},
{
"number": "12",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the output power stage."
},
{
"number": "13",
"name": "LX",
"type": "output",
"description": "Switching node of the power stage; absolute maximum range is -0.3 V to VIN + 0.3 V."
},
{
"number": "14",
"name": "LX",
"type": "output",
"description": "Switching node of the power stage; absolute maximum range is -0.3 V to VIN + 0.3 V."
},
{
"number": "15",
"name": "VIN",
"type": "power_in",
"description": "DC input voltage, 4 V to 38 V operating range with an absolute maximum of 40 V."
},
{
"number": "16",
"name": "VBIAS",
"type": "power_in",
"description": "Typically connected to the regulated output to supply part of the analog circuitry for better light-load efficiency; connect to GND if not used, with absolute maximum of (VIN + 0.3) or 6 V."
},
{
"number": "17",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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 exposed pad (printed as 'E. p.' in Table 1) is not a numbered pin, so it is not listed in the pi; Table 1 text reads '4 A typ.' for the SS/INH charging current; the micro prefix appears lost in extr; The pin connection diagram (Figure 2) is not present in the extracted text; pin numbers and names co",
"exposed pad 17 added from the footprint"
],
"pages_sent": 17,
"cost_usd": 0.0604,
"at": "2026-10-11T03:44:36"
},
"datasheet": {
"url": "https://www.st.com/resource/en/datasheet/a6985f.pdf",
"pages": 83,
"sha256": "e0ef199622516f28",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"footprint_binding": "identity",
"sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
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"sha256": "400fc24e977bff462344887be8dbf509a113692fb4710f468b438b552501933b",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "TSSOP-16-EP",
"Category": "Power Supply Chip",
"Pins": "17"
}
},
"variants": [],
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"discovery_triggers": [
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"discovery_pitch": "A6985F (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
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"email": "[email protected]"
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