component
7533-1
Public Made by Adomby adom
DOWO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379
{
"schema_version": 1,
"type": "component",
"slug": "7533-1",
"title": "7533-1",
"brief": "DOWO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. 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)",
"7533-1",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "7533-1",
"manufacturer": "DOWO",
"package": "SOT-89",
"pin_count": 3,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603182589113495552",
"parts": {
"symbol": "7533-1.kicad_sym",
"footprint": "7533-1.kicad_mod",
"model_3d": "7533-1-hero.glb",
"model_3d_plain": "7533-1-etched.glb",
"model_3d_step": "7533-1-etched.step",
"model_3d_step_plain": "7533-1.step",
"lbr": "7533-1.lbr"
},
"distributor_links": {
"lcsc": "C6718422"
},
"distributor_check": {
"checked_at": "2026-10-18T09:01:45Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin; the datasheet requires a wide copper trace for GND and places the input and output capacitors as close as possible to the device and its GND pin."
},
{
"number": "2",
"name": "VIN",
"type": "power_in",
"description": "Power input accepting 3V to 36V (absolute maximum supply voltage is 40V), decoupled with a 1μF to 10μF ceramic capacitor placed as close as possible to the device."
},
{
"number": "3",
"name": "VOUT",
"type": "power_out",
"description": "Regulated fixed output of 1.8V to 5.0V (variant-dependent), requiring a 1μF to 10μF output capacitor with 5mΩ to 100mΩ ESR and X7R or X5R dielectric for stability; output current is limited to about 100mA under short-circuit."
}
],
"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 datasheet covers the 75xx-1 series, not the exact MPN 7533-1. The mapping to 3.3V output (code 3; The pin table lists an 'NC (No Connected)' entry without a pin number, and no pin in the SOT-89 pino; Pin numbers are taken from the SOT-89 pinout label on page 1 (1.GND 2.VIN 3.VOUT). The datasheet doe"
],
"pages_sent": 8,
"cost_usd": 0.024,
"at": "2026-10-18T09:00:53"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603182589113495552",
"pages": 8,
"sha256": "99387240e1617bc8",
"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": "7533-1.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4.5,
1.52
],
"zmin_mm": 0,
"centre_offset_mm": 0.05,
"footprint_binding": "identity",
"sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "7533-1-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4.5,
1.52
],
"zmin_mm": 0,
"centre_offset_mm": 0.05,
"footprint_binding": "identity",
"sha256": "344aa3d6537a1a9c5d47f1c006bd48976125feb95622d3d115cf68cc8a32ccc9",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "DOWO",
"Package": "SOT-89",
"Category": "Power Management (PMIC)",
"Pins": "3"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "99387240e1617bc84c92e333401ba3f92146af9faffc83b0fb7fa08452d34138",
"rows": [
{
"name": "Input Voltage",
"symbol": "VIN",
"kind": "electrical",
"unit": "V",
"min": 3,
"typ": null,
"max": 36,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Voltage Accuracy",
"symbol": "ΔVOUT",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "IOUT=1mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Maximum Output Current",
"symbol": "IOUT(Max)",
"kind": "electrical",
"unit": "mA",
"min": 150,
"typ": null,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Quiescent Current",
"symbol": "IQ",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 2.5,
"max": 4,
"conditions": "IOUT=0mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Dropout Voltage",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 800,
"max": 950,
"conditions": "VOUT=3.3V; IOUT=150mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Dropout Voltage",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 520,
"max": 680,
"conditions": "VOUT=3.3V; IOUT=100mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Line Regulation",
"symbol": "ΔVLINE",
"kind": "electrical",
"unit": "%/V",
"min": null,
"typ": null,
"max": 0.2,
"conditions": "VIN=VOUT+2V to 30V; IOUT=10mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Load Regulation",
"symbol": "ΔVLOAD",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 25,
"max": 60,
"conditions": "VIN=VOUT+2V; 1mA<IOUT<150mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply Voltage",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Power Dissipation",
"symbol": "PD",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 600,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Thermal Resistance, Junction-to-Ambient",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": null,
"max": 180,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Lead Temperature (Soldering)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 300,
"conditions": "Soldering, 10 sec",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ESD (HBM)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 2000,
"conditions": "HBM mode, ESDA/JEDECJS-001-2017",
"source_page": 3,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"7533-1"
],
"discovery_pitch": "7533-1 (DOWO) 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",
"7533-1.kicad_sym",
"7533-1.kicad_mod",
"7533-1.glb",
"7533-1.step",
"7533-1.lbr",
"docs/hero.png",
"docs/7533-1-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"7533-1-hero.glb",
"7533-1-hero.overlay.json",
"7533-1-etched.glb"
],
"visibility": {
"public": true
}
}