component
TLV431BQFTA
Public Made by Adomby adom
Diodes Incorporated Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584
{
"schema_version": 1,
"type": "component",
"slug": "tlv431bqfta",
"title": "TLV431BQFTA",
"brief": "Diodes Incorporated Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"tlv431bqfta",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TLV431BQFTA",
"manufacturer": "Diodes Incorporated",
"package": "SOT-23",
"pin_count": 3,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Reference",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885141678657536",
"parts": {
"symbol": "tlv431bqfta.kicad_sym",
"footprint": "tlv431bqfta.kicad_mod",
"model_3d": "tlv431bqfta-hero.glb",
"model_3d_plain": "tlv431bqfta-etched.glb",
"model_3d_step": "tlv431bqfta-etched.step",
"model_3d_step_plain": "tlv431bqfta.step",
"lbr": "tlv431bqfta.lbr"
},
"distributor_links": {
"lcsc": "C460615",
"digikey": "TLV431BQFTADITR-ND",
"mouser": "621-TLV431BQFTA"
},
"distributor_check": {
"checked_at": "2026-10-20T21:48:43Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "TLV431BQFTADITR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "621-TLV431BQFTA",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "REF",
"type": "input",
"description": "Reference (feedback) input that the device regulates to VREF = 1.24 V typical; reference input current is 0.15 µA typical and 0.5 µA maximum at R1 = 10 kΩ, R2 open."
},
{
"number": "2",
"name": "CATHODE",
"type": "passive",
"description": "Cathode terminal of the shunt regulator, with cathode voltage rated up to 18 V recommended (20 V absolute maximum) and cathode current of 0.1 mA to 15 mA recommended (-20 mA to 20 mA absolute maximum)."
},
{
"number": "3",
"name": "ANODE",
"type": "passive",
"description": "Anode terminal, the return path of the shunt regulator; the datasheet gives no separate anode rating beyond the cathode current limits of -20 mA to 20 mA."
}
],
"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 SOT23 pin assignment in the text extraction is garbled (labels and numbers are split across line; The datasheet does not state KiCad electrical types for the pins. CATHODE and ANODE were set to pass; The datasheet gives no anode-specific limit; the description only reflects the stated IKA current ra"
],
"pages_sent": 14,
"cost_usd": 0.0504,
"at": "2026-10-20T21:42:28"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885141678657536",
"pages": 14,
"sha256": "f4c428fc40e3ab42",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 3,
"described": 3,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "tlv431bqfta.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
"checked": "2026-10-20",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tlv431bqfta-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "fe068330c59ed78125764d1d1a6e201b9f22cf6640130a569b34b3d8782863d2",
"checked": "2026-10-20",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Diodes Incorporated",
"Package": "SOT-23",
"Category": "Power Management (PMIC)",
"Pins": "3"
},
"appearance": {
"contacts": {
"quote": " Terminals: Finish – Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 Weight: 0.009 grams (Approximate)",
"page": 13,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "f4c428fc40e3ab42096aabcea456c58dcd1a13d8af72a06d3f35b6733f681d42"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "f4c428fc40e3ab42096aabcea456c58dcd1a13d8af72a06d3f35b6733f681d42",
"rows": [
{
"name": "Reference Voltage (TA = +25°C)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 1.234,
"typ": 1.24,
"max": 1.246,
"conditions": "VKA = VREF, TA = +25°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Reference Voltage (TA = 0°C to +70°C)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 1.227,
"typ": null,
"max": 1.253,
"conditions": "VKA = VREF, TA = 0°C to +70°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Reference Voltage (TA = -40°C to +85°C)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 1.224,
"typ": null,
"max": 1.259,
"conditions": "VKA = VREF, TA = -40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Reference Voltage (TA = -40°C to +125°C)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 1.221,
"typ": null,
"max": 1.265,
"conditions": "VKA = VREF, TA = -40°C to +125°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Deviation of Reference Voltage Over Full Temperature Range (TA = 0°C to +70°C)",
"symbol": "VREF(DEV)",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 4,
"max": 12,
"conditions": "VKA = VREF, TA = 0°C to +70°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Deviation of Reference Voltage Over Full Temperature Range (TA = -40°C to +85°C)",
"symbol": "VREF(DEV)",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 6,
"max": 20,
"conditions": "VKA = VREF, TA = -40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Deviation of Reference Voltage Over Full Temperature Range (TA = -40°C to +125°C)",
"symbol": "VREF(DEV)",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 11,
"max": 31,
"conditions": "VKA = VREF, TA = -40°C to +125°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ratio of Change in Reference Voltage to the Change in Cathode Voltage",
"symbol": "ΔVREF/ΔVKA",
"kind": "electrical",
"unit": "mV/V",
"min": null,
"typ": -1.5,
"max": -2.7,
"conditions": "VKA for VREF to 6V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Reference Input Current",
"symbol": "IREF",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.15,
"max": 0.5,
"conditions": "R1 = 10kΩ, R2 = OC",
"source_page": 3,
"source": "datasheet"
},
{
"name": "IREF Deviation Over Full Temperature Range (TA = 0°C to +70°C)",
"symbol": "IREF(DEV)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.05,
"max": 0.3,
"conditions": "R1 = 10kΩ, R2 = OC, TA = 0°C to +70°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "IREF Deviation Over Full Temperature Range (TA = -40°C to +85°C)",
"symbol": "IREF(DEV)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.1,
"max": 0.4,
"conditions": "R1 = 10kΩ, R2 = OC, TA = -40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "IREF Deviation Over Full Temperature Range (TA = -40°C to +125°C)",
"symbol": "IREF(DEV)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.15,
"max": 0.5,
"conditions": "R1 = 10kΩ, R2 = OC, TA = -40°C to +125°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Minimum Cathode Current for Regulation (TA = 0°C to +70°C)",
"symbol": "IKMIN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 55,
"max": 80,
"conditions": "VKA = VREF, TA = 0°C to +70°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Minimum Cathode Current for Regulation (TA = -40°C to +85°C)",
"symbol": "IKMIN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 55,
"max": 80,
"conditions": "VKA = VREF, TA = -40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Minimum Cathode Current for Regulation (TA = -40°C to +125°C)",
"symbol": "IKMIN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 55,
"max": 100,
"conditions": "VKA = VREF, TA = -40°C to +125°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Off-State Current",
"symbol": "IK(OFF)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.001,
"max": 0.1,
"conditions": "VKA = 18V, VREF = 0V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Dynamic Output Impedance",
"symbol": "ZKA",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 0.25,
"max": 0.4,
"conditions": "VKA = VREF, f = <1kHz, IK = 0.1 to 15mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Cathode Voltage",
"symbol": "VKA",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 18,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Current",
"symbol": "IKA",
"kind": "recommended_operating",
"unit": "mA",
"min": 0.1,
"typ": null,
"max": 15,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating Ambient Temperature Range",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Voltage",
"symbol": "VKA",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 20,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Continuous Cathode Current",
"symbol": "IKA",
"kind": "absolute_maximum",
"unit": "mA",
"min": -20,
"typ": null,
"max": 20,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Reference Input Current Range",
"symbol": "IREF",
"kind": "absolute_maximum",
"unit": "mA",
"min": -0.05,
"typ": null,
"max": 3,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Input Supply Voltage (Relative to Ground)",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.03,
"typ": null,
"max": 18,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "TS",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD Susceptibility Human Body Model",
"symbol": "HBM",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 4,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD Susceptibility Machine Model",
"symbol": "MM",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 400,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD Susceptibility Charged Device Model",
"symbol": "CDM",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 1,
"conditions": "Ratings apply to ambient temperature at +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Package Thermal Resistance, Junction to Ambient (SOT23)",
"symbol": "JA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 380,
"max": null,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Package Power Dissipation (SOT23)",
"symbol": "PDIS",
"kind": "thermal",
"unit": "mW",
"min": null,
"typ": null,
"max": 330,
"conditions": "TA = +25°C, TJ = +150°C",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"tlv431bqfta"
],
"discovery_pitch": "TLV431BQFTA (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"tlv431bqfta.kicad_sym",
"tlv431bqfta.kicad_mod",
"tlv431bqfta.glb",
"tlv431bqfta.step",
"tlv431bqfta.lbr",
"docs/hero.png",
"docs/tlv431bqfta-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"tlv431bqfta-hero.glb",
"tlv431bqfta-hero.overlay.json",
"tlv431bqfta-etched.glb"
],
"visibility": {
"public": true
}
}