component
REG103GA-5
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-6. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682
{
"schema_version": 1,
"type": "component",
"slug": "reg103ga-5",
"title": "REG103GA-5",
"brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-6. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"reg103ga-5",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "REG103GA-5",
"manufacturer": "Texas Instruments",
"package": "SOT-223-6",
"pin_count": 6,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://www.ti.com/cn/lit/gpn/reg103",
"parts": {
"symbol": "reg103ga-5.kicad_sym",
"footprint": "reg103ga-5.kicad_mod",
"model_3d": "reg103ga-5-hero.glb",
"model_3d_plain": "reg103ga-5-etched.glb",
"model_3d_step": "reg103ga-5-etched.step",
"model_3d_step_plain": "reg103ga-5.step",
"lbr": "reg103ga-5.lbr"
},
"distributor_links": {
"lcsc": "C2877934"
},
"distributor_check": {
"checked_at": "2026-10-21T17:37:26Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "VIN",
"type": "power_in",
"description": "Supply input; specified 2.1V to 15V operating range (absolute maximum 16V), with a 0.1µF low-ESR input capacitor recommended."
},
{
"number": "2",
"name": "VOUT",
"type": "power_out",
"description": "Regulated 5.0V output with ±2% max accuracy, up to 500mA with foldback current limit; no output capacitor required for stability."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground pin; ground pin current is typically 1mA at 500mA load and 0.5µA when not enabled."
},
{
"number": "4",
"name": "NR/Adjust",
"type": "passive",
"description": "Noise-reduction capacitor pin on fixed-voltage models such as the 5V REG103GA-5 (optional 0.01µF CNR to ground); absolute maximum voltage −0.3V to 6.0V."
},
{
"number": "5",
"name": "ENABLE",
"type": "input",
"description": "Active-high enable compatible with TTL-CMOS levels, with below 0.5V max turning the regulator off, and it may be tied to VIN when unused (absolute maximum −0.3V to VIN)."
},
{
"number": "6",
"name": "TAB (GND)",
"type": "power_in",
"description": "Package tab is electrically connected to ground and is not intended to carry current; it is used as a heat-sink pad."
}
],
"provenance": {
"extractor": "ds2sf",
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/reg103",
"pages": 28,
"sha256": "a25e65ed50b9b378",
"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": "reg103ga-5.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
8.475,
6.7,
1.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "bf43e0f52215e5c8b069c660d1a580928edb1037d7f7155d98bb6d1df79e64ff",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "reg103ga-5-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
8.475,
6.7,
1.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5c6d02bad397a250dbbcf15171886797e16e0249460216f0b8cea860a0c0a129",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOT-223-6",
"Category": "Power Management (PMIC)",
"Pins": "6"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "a25e65ed50b9b3782a48a147c51f044f817d4e5e42381224111e62987b67f850",
"rows": [
{
"name": "Output voltage accuracy",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": 0.5,
"max": 2,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage accuracy over temperature",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -2.8,
"typ": null,
"max": 2.8,
"conditions": "TJ = –40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage vs line and load",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -2.5,
"typ": 0.5,
"max": 2.5,
"conditions": "IOUT = 10mA to 500mA, VIN = (VOUT + 0.7V) to 15V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage vs line and load over temperature",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -3.5,
"typ": null,
"max": 3.5,
"conditions": "TJ = –40°C to +85°C, VIN = (VOUT + 0.9V) to 15V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DC dropout voltage (5V model)",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 160,
"max": 250,
"conditions": "For 5V model, IOUT = 500mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DC dropout voltage (5V model) over temperature",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": null,
"max": 280,
"conditions": "For 5V models, IOUT = 500mA, TJ = –40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DC dropout voltage at low load",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 3,
"max": 25,
"conditions": "IOUT = 10mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Current limit",
"symbol": "ICL",
"kind": "electrical",
"unit": "mA",
"min": 550,
"typ": 700,
"max": 950,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Current limit over temperature",
"symbol": "ICL",
"kind": "electrical",
"unit": "mA",
"min": 500,
"typ": null,
"max": 1000,
"conditions": "TJ = –40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ENABLE voltage HIGH (output enabled)",
"symbol": "VENABLE",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "Output enabled; printed maximum is VIN",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ENABLE voltage LOW (output disabled)",
"symbol": "VENABLE",
"kind": "electrical",
"unit": "V",
"min": -0.2,
"typ": null,
"max": 0.5,
"conditions": "Output disabled",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ENABLE input current HIGH (output enabled)",
"symbol": "IENABLE",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": 1,
"max": 100,
"conditions": "VENABLE = 2V to VIN, VIN = 2.1V to 6.5",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ENABLE input current LOW (output disabled)",
"symbol": "IENABLE",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": 2,
"max": 100,
"conditions": "VENABLE = 0V to 0.5V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ground pin current",
"symbol": "IGND",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.5,
"max": 0.7,
"conditions": "IOUT = 10mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ground pin current at full load",
"symbol": "IGND",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1,
"max": 1.3,
"conditions": "IOUT = 500mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating input voltage range",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 2.1,
"typ": null,
"max": 15,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Specified input voltage range",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 15,
"conditions": "VIN > 2.7V; minimum printed as VOUT + 0.7 V (not evaluated)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Specified input voltage range over temperature",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 15,
"conditions": "TJ = –40°C to +85°C, VIN > 2.9V; minimum printed as VOUT + 0.9 V (not evaluated)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Specified junction temperature range",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Supply input voltage",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 16,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Enable input voltage",
"symbol": "VEN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "Maximum printed as VIN",
"source_page": 2,
"source": "datasheet"
},
{
"name": "NR pin voltage",
"symbol": "VNR",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Lead temperature (soldering)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 240,
"conditions": "Soldering, 3s, SOT package",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD rating HBM (VOUT to GND)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "HBM, VOUT to GND",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD rating HBM (all other pins)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 2,
"conditions": "HBM, all other pins",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD rating CDM",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 500,
"conditions": "CDM",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Output voltage (REG103-5)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 5,
"max": null,
"conditions": "REG103-5",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ripple rejection",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": 65,
"max": null,
"conditions": "f = 120Hz",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage noise without CNR",
"symbol": "Vn",
"kind": "electrical",
"unit": "µVrms/V • VOUT",
"min": null,
"typ": 30,
"max": null,
"conditions": "f = 10Hz to 100kHz, CNR = 0, COUT = 0",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage noise with CNR",
"symbol": "Vn",
"kind": "electrical",
"unit": "µVrms/V • VOUT",
"min": null,
"typ": 10,
"max": null,
"conditions": "f = 10Hz to 100kHz, CNR = 0.01µF, COUT = 10µF",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage temperature drift",
"symbol": "dVOUT/dT",
"kind": "temperature_coefficient",
"unit": "ppm/°C",
"min": null,
"typ": 70,
"max": null,
"conditions": "TJ = –40°C to +85°C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ground pin current, ENABLE pin LOW",
"symbol": "IGND",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.5,
"max": null,
"conditions": "VENABLE ≤ 0.5V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output disable time",
"symbol": "",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 50,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output enable soft start time",
"symbol": "",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": 1.5,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Thermal shutdown junction temperature",
"symbol": "",
"kind": "thermal",
"unit": "°C",
"min": null,
"typ": 150,
"max": null,
"conditions": "Shutdown",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Thermal reset junction temperature",
"symbol": "",
"kind": "thermal",
"unit": "°C",
"min": null,
"typ": 130,
"max": null,
"conditions": "Reset from shutdown",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Thermal resistance junction-to-case (SOT223-5)",
"symbol": "θJC",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 15,
"max": null,
"conditions": "SOT223-5 surface-mount, junction-to-case",
"source_page": 3,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"reg103ga-5"
],
"discovery_pitch": "REG103GA-5 (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",
"reg103ga-5.kicad_sym",
"reg103ga-5.kicad_mod",
"reg103ga-5.glb",
"reg103ga-5.step",
"reg103ga-5.lbr",
"docs/hero.png",
"docs/reg103ga-5-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"reg103ga-5-hero.glb",
"reg103ga-5-hero.overlay.json",
"reg103ga-5-etched.glb"
],
"visibility": {
"public": true
}
}