component
LM2575S-3.3-MS
Public Made by Adomby adom
MSKSEMI DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554
{
"schema_version": 1,
"type": "component",
"slug": "lm2575s-3-3-ms",
"title": "LM2575S-3.3-MS",
"brief": "MSKSEMI DC-DC Converters, TO-263-5. 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)",
"lm2575s-3.3-ms",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "LM2575S-3.3-MS",
"manufacturer": "MSKSEMI",
"package": "TO-263-5",
"pin_count": 6,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603161884572987392",
"parts": {
"symbol": "lm2575s-3-3-ms.kicad_sym",
"footprint": "lm2575s-3-3-ms.kicad_mod",
"model_3d": "lm2575s-3-3-ms-hero.glb",
"model_3d_plain": "lm2575s-3-3-ms-etched.glb",
"model_3d_step": "lm2575s-3-3-ms-etched.step",
"model_3d_step_plain": "lm2575s-3-3-ms.step",
"lbr": "lm2575s-3-3-ms.lbr"
},
"distributor_links": {
"lcsc": "C5189808"
},
"distributor_check": {
"checked_at": "2026-10-19T09:33:51Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "error"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "Vin",
"type": "power_in",
"description": "Positive input supply for the switching regulator, which needs a suitable input bypass capacitor; the LM2575 operating supply range is 4.75V to 40V for the 3.3V version, with an absolute maximum supply voltage of 45V."
},
{
"number": "2",
"name": "Output",
"type": "output",
"description": "Internal switch output that switches between (VIN − VSAT) and approximately −0.5V, and the output-to-ground steady-state voltage is limited to −1V, so the PC board copper on this pin should be kept small to limit coupling."
},
{
"number": "3",
"name": "Gnd",
"type": "power_in",
"description": "Circuit ground for the regulator, to be connected using a ground plane or single-point grounding located close to the IC."
},
{
"number": "4",
"name": "Feedback",
"type": "input",
"description": "Senses the regulated output voltage to close the feedback loop, with a feedback pin voltage limited to −0.3V to +25V."
},
{
"number": "5",
"name": "ON/OFF",
"type": "input",
"description": "Logic-level shutdown input in which pulling below approximately 1.3V turns the regulator on and pulling above 1.3V shuts it off, with a maximum pin voltage of 25V; if unused it can be tied to ground or left open, leaving the regulator on."
},
{
"number": "6",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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 is a generic LM2575 series document. The ordering table lists LM2575S-3.3 under the TO; Pin descriptions combine the Pin Descriptions table (page 3) with the Pin Functions section (page 12",
"exposed pad 6 added from the footprint"
],
"pages_sent": 19,
"cost_usd": 0.0663,
"at": "2026-10-19T09:33:35"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603161884572987392",
"pages": 19,
"sha256": "ba1ba56f85adba0d",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 6,
"described": 6,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "lm2575s-3-3-ms.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
15,
10,
4.42
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "94c2a3dc1aaad85b6b5193f97d9a7c61b4e28bac25952a1e629557bcf747e246",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "lm2575s-3-3-ms-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
15,
10,
4.42
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "450a93c1ecb5f525221d927a3ce8e138e314e42be20bf323d0a9f04865c104dd",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "MSKSEMI",
"Package": "TO-263-5",
"Category": "Power Management (PMIC)",
"Pins": "6"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "ba1ba56f85adba0d896d6f5a08362c46dc3f8c971b61457667303fa95040d5b1",
"rows": [
{
"name": "Output voltage (25 C)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "V",
"min": 3.168,
"typ": 3.3,
"max": 3.432,
"conditions": "TJ = 25 C; 4.75V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 2A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output voltage (full operating temperature range)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "V",
"min": 3.135,
"typ": null,
"max": 3.465,
"conditions": "Full operating temperature range; 4.75V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 2A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Oscillator frequency (25 C)",
"symbol": "fO",
"kind": "electrical",
"unit": "kHz",
"min": 127,
"typ": 150,
"max": 173,
"conditions": "TJ = 25 C; Note 6",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Oscillator frequency (full operating temperature range)",
"symbol": "fO",
"kind": "electrical",
"unit": "kHz",
"min": 110,
"typ": null,
"max": 173,
"conditions": "Full operating temperature range; Note 6",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Saturation voltage (25 C)",
"symbol": "VSAT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.16,
"max": 1.4,
"conditions": "IOUT = 2A (Notes 7, 8); TJ = 25 C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Saturation voltage (full operating temperature range)",
"symbol": "VSAT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "IOUT = 2A (Notes 7, 8); full operating temperature range",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Current limit peak current (25 C)",
"symbol": "ICL",
"kind": "electrical",
"unit": "A",
"min": 3.6,
"typ": 4.5,
"max": 6.9,
"conditions": "Peak current (Notes 7, 8); TJ = 25 C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Current limit peak current (full operating temperature range)",
"symbol": "ICL",
"kind": "electrical",
"unit": "A",
"min": 3.4,
"typ": null,
"max": 7.5,
"conditions": "Peak current (Notes 7, 8); full operating temperature range",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output leakage current",
"symbol": "IL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 50,
"conditions": "Output = 0V (Notes 7, 9)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output leakage current",
"symbol": "IL",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2,
"max": 30,
"conditions": "Output = −1V (Note 10)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Quiescent current",
"symbol": "IQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 5,
"max": 10,
"conditions": "Note 9",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Standby quiescent current (25 C)",
"symbol": "ISTBY",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 80,
"max": 200,
"conditions": "ON/OFF pin = 5V (OFF) (Note 10); TJ = 25 C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Standby quiescent current (full operating temperature range)",
"symbol": "ISTBY",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 250,
"conditions": "ON/OFF pin = 5V (OFF) (Note 10); full operating temperature range",
"source_page": 5,
"source": "datasheet"
},
{
"name": "ON/OFF pin threshold voltage, low (regulator ON)",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.3,
"max": 0.6,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "ON/OFF pin threshold voltage, high (regulator OFF)",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": 1.3,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "ON/OFF pin input current (regulator OFF)",
"symbol": "IH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 5,
"max": 15,
"conditions": "VLOGIC = 2.5V (Regulator OFF)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "ON/OFF pin input current (regulator ON)",
"symbol": "IL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.02,
"max": 5,
"conditions": "VLOGIC = 0.5V (Regulator ON)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "ON/OFF pin input voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Feedback pin voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage to ground (steady state)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -1,
"typ": null,
"max": null,
"conditions": "Steady state",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Maximum supply voltage (LM2575)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 45,
"conditions": "LM2575 (standard, not HV)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Maximum junction temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Lead temperature, vapor phase",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 215,
"conditions": "Vapor phase, 60 sec, S package",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Lead temperature, infrared",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 245,
"conditions": "Infrared, 10 sec, S package",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating temperature range (junction)",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Supply voltage (LM2575)",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 40,
"conditions": "LM2575 (standard, not HV)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Thermal resistance, junction to case",
"symbol": "JC",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 2,
"max": null,
"conditions": "TO-220 or TO-263 package, junction to case",
"source_page": 5,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"lm2575s-3.3-ms"
],
"discovery_pitch": "LM2575S-3.3-MS (MSKSEMI) 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",
"lm2575s-3-3-ms.kicad_sym",
"lm2575s-3-3-ms.kicad_mod",
"lm2575s-3-3-ms.glb",
"lm2575s-3-3-ms.step",
"lm2575s-3-3-ms.lbr",
"docs/hero.png",
"docs/lm2575s-3-3-ms-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"lm2575s-3-3-ms-hero.glb",
"lm2575s-3-3-ms-hero.overlay.json",
"lm2575s-3-3-ms-etched.glb"
],
"visibility": {
"public": true
}
}