component
DS8402-50S3
Public Made by Adomby adom
DSTECH Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461
{
"schema_version": 1,
"type": "component",
"slug": "ds8402-50s3",
"title": "DS8402-50S3",
"brief": "DSTECH Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. 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)",
"ds8402-50s3",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "DS8402-50S3",
"manufacturer": "DSTECH",
"package": "SOT-23-3",
"pin_count": 3,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2c05e3fc7be42ee1e07fbfddadbea9b9.pdf",
"parts": {
"symbol": "ds8402-50s3.kicad_sym",
"footprint": "ds8402-50s3.kicad_mod",
"model_3d": "ds8402-50s3-hero.glb",
"model_3d_plain": "ds8402-50s3-etched.glb",
"model_3d_step": "ds8402-50s3-etched.step",
"model_3d_step_plain": "ds8402-50s3.step",
"lbr": "ds8402-50s3.lbr"
},
"distributor_links": {
"lcsc": "C48533050"
},
"distributor_check": {
"checked_at": "2026-10-18T03:24:54Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the regulator; the input and output capacitor ground connections must return to this pin using as wide and short a copper trace as practical."
},
{
"number": "2",
"name": "VOUT",
"type": "power_out",
"description": "Regulated 5.0V output of the LDO, which must be stable with an output capacitor of 1µF to 22µF with at least 1mΩ ESR placed close to the VOUT and GND pins."
},
{
"number": "3",
"name": "VIN",
"type": "power_in",
"description": "Supply input of the regulator, rated 2.5V to 36V in recommended operating conditions (absolute maximum VIN to GND is -0.3V to 40V), with a 1µF or larger input capacitor placed close to the VIN and GND pins."
}
],
"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 SOT-23-3 pin numbers were read from the 'Description of Functional Pins' table, where the multi-; The pin-configuration figure on page 1 is garbled in text extraction (the numbers 1, 2, 3 are separa; The datasheet's pin descriptions give no separate pin-level electrical limits for GND. The GND descr"
],
"pages_sent": 13,
"cost_usd": 0.0517,
"at": "2026-10-18T03:22:56"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/2c05e3fc7be42ee1e07fbfddadbea9b9.pdf",
"pages": 13,
"sha256": "920d1bd86b5963da",
"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": "ds8402-50s3.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": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ds8402-50s3-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": "edeef454fcda0aefaf8f327681bb702728eaae2ba71879030a791e8f43ea827d",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "DSTECH",
"Package": "SOT-23-3",
"Category": "Power Management (PMIC)",
"Pins": "3"
},
"appearance": {
"contacts": {
"quote": "must be back to the DS8402 ground pin using as wide and as short of a copper trace as is practical.",
"page": 9,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "920d1bd86b5963da15f295f163f14163ffa5ed166818a6897c5839669988aa25"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "920d1bd86b5963da15f295f163f14163ffa5ed166818a6897c5839669988aa25",
"rows": [
{
"name": "Supply Voltage",
"symbol": "VIN",
"kind": "electrical",
"unit": "V",
"min": 2.5,
"typ": null,
"max": 36,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "DC Output Voltage Accuracy",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "ILOAD =0.1mA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Dropout Voltage (VOUT ≥ 5V)",
"symbol": "VDROP",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.35,
"conditions": "ILOAD =100mA, VOUT ≥ 5V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Line Regulation",
"symbol": "ΔLINE",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "ILOAD =1mA, 10V ≤ VIN ≤ 20V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output Current Limit",
"symbol": "ILIM",
"kind": "electrical",
"unit": "mA",
"min": 201,
"typ": 350,
"max": null,
"conditions": "VOUT =0V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Load Regulation",
"symbol": "ΔLOAD",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": 0.5,
"max": null,
"conditions": "10mA≤ ILOAD ≤ 0.1A",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Ground Current",
"symbol": "IQ",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 2,
"max": null,
"conditions": "ILOAD = 0mA, VOUT ≤ 5V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Thermal Shutdown Hysteresis",
"symbol": "ΔTSD",
"kind": "thermal",
"unit": "°C",
"min": null,
"typ": 30,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Thermal Shutdown Temperature",
"symbol": "TSD",
"kind": "thermal",
"unit": "°C",
"min": null,
"typ": 160,
"max": null,
"conditions": "ILOAD =10mA",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VIN to GND",
"symbol": "VIN to GND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VOUT to GND",
"symbol": "VOUT to GND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 14,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VOUT to VIN",
"symbol": "VOUT to VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -40,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Lead Temperature (Soldering)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 260,
"conditions": "Soldering, 10 sec.",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "ESD Susceptibility HBM",
"symbol": "",
"kind": "absolute_maximum",
"unit": "KV",
"min": null,
"typ": null,
"max": 2,
"conditions": "HBM",
"source_page": 4,
"source": "datasheet"
},
{
"name": "ESD Susceptibility MM",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 200,
"conditions": "MM",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input Voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": null,
"max": 36,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction Temperature Range",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Ambient Temperature Range",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Package Thermal Resistance, SOT-23-3",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 220,
"max": null,
"conditions": "TA=25°C, DSTECH EVB board (Note 2)",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ds8402-50s3"
],
"discovery_pitch": "DS8402-50S3 (DSTECH) 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",
"ds8402-50s3.kicad_sym",
"ds8402-50s3.kicad_mod",
"ds8402-50s3.glb",
"ds8402-50s3.step",
"ds8402-50s3.lbr",
"docs/hero.png",
"docs/ds8402-50s3-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ds8402-50s3-hero.glb",
"ds8402-50s3-hero.overlay.json",
"ds8402-50s3-etched.glb"
],
"visibility": {
"public": true
}
}