component
UA78L05ACPKM3
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521
{
"schema_version": 1,
"type": "component",
"slug": "ua78l05acpkm3",
"title": "UA78L05ACPKM3",
"brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. 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)",
"ua78l05acpkm3",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "UA78L05ACPKM3",
"manufacturer": "Texas Instruments",
"package": "SOT-89-3",
"pin_count": 3,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://www.ti.com/lit/ds/symlink/ua78l.pdf",
"parts": {
"symbol": "ua78l05acpkm3.kicad_sym",
"footprint": "ua78l05acpkm3.kicad_mod",
"model_3d": "ua78l05acpkm3-hero.glb",
"model_3d_plain": "ua78l05acpkm3-etched.glb",
"model_3d_step": "ua78l05acpkm3-etched.step",
"model_3d_step_plain": "ua78l05acpkm3.step",
"lbr": "ua78l05acpkm3.lbr"
},
"distributor_links": {
"lcsc": "C22237123"
},
"distributor_check": {
"checked_at": "2026-10-17T20:03:18Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "OUTPUT",
"type": "power_out",
"description": "Regulated 5 V output; use the recommended output capacitor of 0.1 µF from the Recommended Operating Conditions table and place it as close to the OUT and GND pins as possible."
},
{
"number": "2",
"name": "COMMON",
"type": "power_in",
"description": "Ground (common) reference pin for the regulator."
},
{
"number": "3",
"name": "INPUT",
"type": "input",
"description": "Input pin for the UA78L05AC, recommended input voltage 7 V to 20 V; use the recommended input capacitor of 0.33 µF and place it as close to the IN and GND pins as possible."
}
],
"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: Pinout taken from the SOT-89 (PK) entry of the Pin Configuration table (page 3) and Figure 5-3; the ; The datasheet's pin-function text refers to the pins as IN, OUT and GND in the capacitor placement n; The input voltage range (7 V to 20 V) and capacitor values (0.33 µF input, 0.1 µF output) are the da"
],
"pages_sent": 12,
"cost_usd": 0.089,
"at": "2026-10-17T20:00:37"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/ua78l.pdf",
"pages": 47,
"sha256": "a1ac403ce6d0e41e",
"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": "ua78l05acpkm3.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": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ua78l05acpkm3-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": "36124fe73be943ca2fd5114565aaf40bb0801137afeb99a12084ed11f0c6c38b",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOT-89-3",
"Category": "Power Management (PMIC)",
"Pins": "3"
},
"appearance": {
"contacts": {
"quote": "Keep trace widths large enough to eliminate problematic I×R voltage drops at the input and output pins. Place bypass capacitors as close to the UA78L as possible. Additional copper and vias connected ",
"page": 26,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "a1ac403ce6d0e41ec892081372fc749915af4e104898c1e02c193c83e15166cd"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "a1ac403ce6d0e41ec892081372fc749915af4e104898c1e02c193c83e15166cd",
"rows": [
{
"name": "Input voltage (absolute maximum, new chip)",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 45,
"conditions": "New chip; UA78L05AC listed",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input voltage (recommended)",
"symbol": "VI",
"kind": "recommended_operating",
"unit": "V",
"min": 7,
"typ": null,
"max": 20,
"conditions": "UA78L05C and UA78L05AC, legacy and new chip",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output current",
"symbol": "IO",
"kind": "recommended_operating",
"unit": "mA",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "UA78L00C, UA78L00AC and UA78L05AI series, new chip",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output voltage",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": 4.95,
"typ": 5,
"max": 5.15,
"conditions": "VI = 7 V to 20 V, IO = 1 mA to 40 mA, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output voltage",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": 4.85,
"typ": null,
"max": 5.15,
"conditions": "VI = 7 V to 20 V, IO = 1 mA to 40 mA, TJ = full range (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output voltage",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": 4.8,
"typ": null,
"max": 5.14,
"conditions": "IO = 1 mA to 70 mA, TJ = full range (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input voltage regulation",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 32,
"max": 33,
"conditions": "VI = 7 V to 20 V, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input voltage regulation",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 26,
"max": 28,
"conditions": "VI = 8 V to 20 V, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Ripple rejection",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 48,
"typ": 55,
"max": null,
"conditions": "VI = 8 V to 18 V, f = 120 Hz, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output voltage regulation",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 15,
"max": 35,
"conditions": "IO = 1 mA to 100 mA, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output voltage regulation",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 8,
"max": 15,
"conditions": "IO = 1 mA to 40 mA, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Bias current",
"symbol": "",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 3.53,
"max": 3.95,
"conditions": "TJ = 25°C (new chip)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output noise voltage",
"symbol": "",
"kind": "electrical",
"unit": "µV",
"min": null,
"typ": 125,
"max": null,
"conditions": "f = 10 Hz to 100 kHz, TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Dropout voltage",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.7,
"max": null,
"conditions": "TJ = 25°C (new chip)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Bias current",
"symbol": "",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 4,
"max": null,
"conditions": "TJ = 125°C (new chip)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Bias current change",
"symbol": "",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.485,
"max": null,
"conditions": "VI = 8 V to 20 V, TJ = full range (new chip)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Bias current change",
"symbol": "",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.01,
"max": null,
"conditions": "IO = 1 mA to 40 mA, TJ = full range (new chip)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal resistance",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 54.7,
"max": null,
"conditions": "PK (SOT-89) package",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction-to-case (top) thermal resistance",
"symbol": "RθJC(top)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 88.1,
"max": null,
"conditions": "PK (SOT-89) package",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction-to-board thermal resistance",
"symbol": "RθJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 9.6,
"max": null,
"conditions": "PK (SOT-89) package",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction-to-top characterization parameter",
"symbol": "ψJT",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 6.2,
"max": null,
"conditions": "PK (SOT-89) package",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction-to-board characterization parameter",
"symbol": "ψJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 9.7,
"max": null,
"conditions": "PK (SOT-89) package",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction-to-case (bottom) thermal resistance",
"symbol": "RθJC(bot)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 7.7,
"max": null,
"conditions": "PK (SOT-89) package",
"source_page": 5,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ua78l05acpkm3"
],
"discovery_pitch": "UA78L05ACPKM3 (Texas Instruments) 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",
"ua78l05acpkm3.kicad_sym",
"ua78l05acpkm3.kicad_mod",
"ua78l05acpkm3.glb",
"ua78l05acpkm3.step",
"ua78l05acpkm3.lbr",
"docs/hero.png",
"docs/ua78l05acpkm3-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ua78l05acpkm3-hero.glb",
"ua78l05acpkm3-hero.overlay.json",
"ua78l05acpkm3-etched.glb"
],
"visibility": {
"public": true
}
}