component
PJ54M33SQ
Public Made by Adomby adom
PJSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511
{
"schema_version": 1,
"type": "component",
"slug": "pj54m33sq",
"title": "PJ54M33SQ",
"brief": "PJSEMI 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)",
"pj54m33sq",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "PJ54M33SQ",
"manufacturer": "PJSEMI",
"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/8603384353083187200",
"parts": {
"symbol": "pj54m33sq.kicad_sym",
"footprint": "pj54m33sq.kicad_mod",
"model_3d": "pj54m33sq-hero.glb",
"model_3d_plain": "pj54m33sq-etched.glb",
"model_3d_step": "pj54m33sq-etched.step",
"model_3d_step_plain": "pj54m33sq.step",
"lbr": "pj54m33sq.lbr"
},
"distributor_links": {
"lcsc": "C20618187"
},
"distributor_check": {
"checked_at": "2026-10-18T07:11:41Z",
"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 for the regulator; the datasheet requires wide copper traces for both VIN and GND and says the output capacitor must sit as close as possible to the VOUT and GND pins."
},
{
"number": "2",
"name": "VIN",
"type": "power_in",
"description": "Power input with a stated operating supply range of 3 to 45 V and an absolute maximum VIN-to-GND voltage of -0.3 to +55 V."
},
{
"number": "3",
"name": "VOUT",
"type": "power_out",
"description": "Regulated output with a maximum output current of 350 mA; a ceramic output capacitor of at least 10 µF (X7R or X5R) is required for stability and should be placed close to VOUT and GND."
}
],
"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: Page 2 lists 'SOT-89' with the pin labels '2.VIN' appearing twice (once as the top label and once in; The MPN PJ54M33SQ has no '-A' suffix, so the normal pin arrangement (1.GND, 2.VIN, 3.VOUT) applies. "
],
"pages_sent": 25,
"cost_usd": 0.0435,
"at": "2026-10-18T07:09:52"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603384353083187200",
"pages": 25,
"sha256": "494f5a1224bd9a3b",
"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": "pj54m33sq.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": "pj54m33sq-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": "d1956dc8d9697de3d3fcde2d734fd564ce88820232f12f59eef84bc20fa952b1",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "PJSEMI",
"Package": "SOT-89",
"Category": "Power Management (PMIC)",
"Pins": "3"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "494f5a1224bd9a3b346d67f3521180738f7508a6d35fd7d8ffa442023ff00f6e",
"rows": [
{
"name": "Input Voltage",
"symbol": "VIN",
"kind": "electrical",
"unit": "V",
"min": 3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output Voltage Accuracy",
"symbol": "∆VOUT",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "VIN=12V, IOUT=10mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Maximum Output Current",
"symbol": "IOUT_Max",
"kind": "electrical",
"unit": "mA",
"min": 300,
"typ": 350,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "EN Input Threshold Logic Low",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "EN Input Threshold Logic High",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 1,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "VIN to GND Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 55,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VOUT to GND Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VOUT to VIN Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -55,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "EN to GND Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 55,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Power Dissipation (SOT-89)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 920,
"conditions": "SOT-89 package",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Supply Voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Maximum Output Current",
"symbol": "",
"kind": "recommended_operating",
"unit": "mA",
"min": null,
"typ": null,
"max": 350,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Operating Ambient Temperature",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Quiescent Current",
"symbol": "IQ",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 2.1,
"max": null,
"conditions": "VIN=12V, IOUT=0mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Dropout Voltage",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 35,
"max": null,
"conditions": "VIN=VOUTNOM-0.1V, IOUT=10mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Dropout Voltage",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 350,
"max": null,
"conditions": "VIN=VOUTNOM-0.1V, IOUT=100mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Line Regulation",
"symbol": "∆VLINE",
"kind": "electrical",
"unit": "%/V",
"min": null,
"typ": 0.01,
"max": null,
"conditions": "VOUTNOM+0.5V≤VIN≤40V, IOUT=1mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Load Regulation",
"symbol": "∆VLOAD",
"kind": "electrical",
"unit": "%/mA",
"min": null,
"typ": 0.02,
"max": null,
"conditions": "VIN=12V, 1mA<IOUT<100mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Current Limit",
"symbol": "ILIM",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 500,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Output Noise Voltage",
"symbol": "VN",
"kind": "electrical",
"unit": "μVRMS",
"min": null,
"typ": 110,
"max": null,
"conditions": "10Hz~100KHz, COUT=1μF, VOUT=3V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Power Supply Rejection Ratio",
"symbol": "PSRR",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": 85,
"max": null,
"conditions": "VIN=12V,IOUT=10mA, f=1KHz,VOUT=3.3V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Thermal Shutdown Temperature",
"symbol": "TSHDN",
"kind": "electrical",
"unit": "°C",
"min": null,
"typ": 150,
"max": null,
"conditions": "Shutdown, Temp increasing",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Thermal Reset Temperature",
"symbol": "TSHDN",
"kind": "electrical",
"unit": "°C",
"min": null,
"typ": 140,
"max": null,
"conditions": "Reset, Temp decreasing",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Thermal Resistance, Junction-to-Ambient",
"symbol": "",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 135,
"max": null,
"conditions": "SOT-89 package",
"source_page": 7,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"pj54m33sq"
],
"discovery_pitch": "PJ54M33SQ (PJSEMI) 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",
"pj54m33sq.kicad_sym",
"pj54m33sq.kicad_mod",
"pj54m33sq.glb",
"pj54m33sq.step",
"pj54m33sq.lbr",
"docs/hero.png",
"docs/pj54m33sq-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"pj54m33sq-hero.glb",
"pj54m33sq-hero.overlay.json",
"pj54m33sq-etched.glb"
],
"visibility": {
"public": true
}
}