component
LT3970EMS#TRPBF
Public Made by Adomby adom
Analog Devices DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "lt3970ems-trpbf",
"version": "0.1.0",
"type": "component",
"description": "Analog Devices DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management ics",
"lt3970ems#trpbf",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"lt3970ems-trpbf.kicad_sym",
"lt3970ems-trpbf.kicad_mod",
"lt3970ems-trpbf.glb",
"lt3970ems-trpbf.step",
"lt3970ems-trpbf.lbr",
"docs/hero.png",
"docs/lt3970ems-trpbf-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"lt3970ems-trpbf-hero.glb",
"lt3970ems-trpbf-hero.overlay.json",
"lt3970ems-trpbf-etched.glb"
],
"component": {
"mpn": "LT3970EMS#TRPBF",
"manufacturer": "Analog Devices",
"package": "MSOP-10",
"pin_count": 10,
"category": "Power Management ICs",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt3970.pdf",
"parts": {
"symbol": "lt3970ems-trpbf.kicad_sym",
"footprint": "lt3970ems-trpbf.kicad_mod",
"model_3d": "lt3970ems-trpbf-hero.glb",
"model_3d_plain": "lt3970ems-trpbf-etched.glb",
"model_3d_step": "lt3970ems-trpbf-etched.step",
"model_3d_step_plain": "lt3970ems-trpbf.step",
"lbr": "lt3970ems-trpbf.lbr"
},
"distributor_links": {
"lcsc": "C671735",
"digikey": "LT3970EMS#TRPBFTR-ND",
"mouser": "584-LT3970EMS#TRPBF"
},
"distributor_check": {
"checked_at": "2026-10-30T21:05:31Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "LT3970EMS#TRPBFTR-ND",
"status": "found"
},
"mouser": {
"pn": "584-LT3970EMS#TRPBF",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "FB",
"type": "input",
"description": "Feedback pin regulated to 1.21V; connect the feedback resistor divider tap here (LT3970 adjustable version)."
},
{
"number": "2",
"name": "EN",
"type": "input",
"description": "Shutdown when low and active when high, with a 1V rising and 0.97V falling hysteretic threshold; tie to VIN if unused, and ground it if VIN is below 4.2V."
},
{
"number": "3",
"name": "VIN",
"type": "power_in",
"description": "Supplies current to the internal circuitry and the internal power switch; must be locally bypassed."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground pin that must be soldered to the PCB."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground pin that must be soldered to the PCB."
},
{
"number": "6",
"name": "SW",
"type": "output",
"description": "Output of the internal power switch; connect to the inductor."
},
{
"number": "7",
"name": "BOOST",
"type": "passive",
"description": "Provides a drive voltage higher than the input voltage to the internal bipolar NPN power switch."
},
{
"number": "8",
"name": "BD",
"type": "input",
"description": "Anode of the boost diode, which also supplies current to the internal regulator when BD is above 3.2V."
},
{
"number": "9",
"name": "PG",
"type": "output",
"description": "Open-drain output of an internal comparator that stays low until FB is within 10% of final regulation; valid when VIN is above 4.2V and EN is high."
},
{
"number": "10",
"name": "RT",
"type": "passive",
"description": "A resistor tied between RT and ground sets the switching frequency."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: LT3970EMS#TRPBF is the adjustable version, so pin 1 is FB. The fixed-output variants (-3.3, -3.42, -; Pin types for BOOST, BD, and RT are my choices, because the datasheet does not give ERC classes. BOO"
],
"pages_sent": 20,
"cost_usd": 0.0501,
"at": "2026-10-30T21:05:23"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt3970.pdf",
"pages": 24,
"sha256": "e25978555387c0ba",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 10,
"described": 10,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "lt3970ems-trpbf.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.9,
3.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "lt3970ems-trpbf-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.9,
3.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "89a646f62ae722724431f84948d7648c8779579339e5ad2b932fc92879dd9978",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}