component
MC33275ST-3.3T3G
Public Made by Adomby adom
onsemi MC33275ST 3 3T3G Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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Ray
mc33275st-3-3t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the pla…
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"title": "MC33275ST-3.3T3G",
"brief": "onsemi MC33275ST 3 3T3G Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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"name": "Vin",
"type": "power_in",
"description": "Unregulated input supply. Absolute maximum 13 Vdc; operating range typically [Vout + 1 V] to 12 V. Input capacitor recommended for stability and transient response."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the regulator. Connect to system ground; ties to the tab (pin 4) internally on the SOT-223 package."
},
{
"number": "3",
"name": "Vout",
"type": "power_out",
"description": "Regulated 3.3 V output (3.267 V min / 3.30 V typ / 3.333 V max at 25°C). Supplies up to 300 mA. Requires at least 0.33 µF output capacitance for stability; 1.0 µF or larger recommended for best transient response."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground tab (heat-spreading pad) on the SOT-223 package. Electrically connected to pin 2; solder to a copper ground pour for thermal dissipation."
}
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"pin1": {
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"at": [
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"corner": "top-left",
"source": "silk-marker",
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"mark": "drawn"
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"metadata": {
"specs": {
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"Package": "SOT-223",
"Category": "PMIC",
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"name": "Output Voltage (3.3 V suffix), IO = 0 to 250 mA, TA = 25 C",
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"unit": "V",
"min": 3.267,
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"max": 3.333,
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"source_page": 3,
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{
"name": "Output Voltage (3.3 V suffix), 2% tolerance, TJ = -40 to +125 C",
"symbol": "VO",
"kind": "tolerance",
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"min": 3.234,
"typ": null,
"max": 3.366,
"conditions": "Vin = [VO + 1] V, 0 < IO < 100 mA, 2% Tolerance from TJ = −40 to +125°C",
"source_page": 3,
"source": "datasheet"
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{
"name": "Line Regulation",
"symbol": "Regline",
"kind": "electrical",
"unit": "mV",
"min": null,
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"max": 10,
"conditions": "Vin = [VO + 1] V to 12 V, IO = 250 mA, All Suffixes TA = 25°C",
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{
"name": "Load Regulation",
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"unit": "mV",
"min": null,
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"max": 25,
"conditions": "Vin = [VO + 1] V, IO = 0 mA to 250 mA, All Suffixes TA = 25°C",
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{
"name": "Dropout Voltage",
"symbol": "Vin − VO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 25,
"max": 100,
"conditions": "IO = 10 mA, TJ = −40°C to +125°C",
"source_page": 3,
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{
"name": "Dropout Voltage",
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"conditions": "IO = 100 mA",
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{
"name": "Dropout Voltage",
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"max": 400,
"conditions": "IO = 250 mA",
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{
"name": "Dropout Voltage",
"symbol": "Vin − VO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 260,
"max": 500,
"conditions": "IO = 300 mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ripple Rejection (120 Hz)",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 65,
"typ": 75,
"max": null,
"conditions": "Vin(peak−peak) = [VO + 1.5] V to [VO + 5.5] V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Quiescent Current ON Mode",
"symbol": "IQOn",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 125,
"max": 200,
"conditions": "Vin = [VO + 1] V, IO = 0 mA",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Quiescent Current ON Mode SAT (3.3 V suffix)",
"symbol": "IQSAT",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 1500,
"max": 2000,
"conditions": "Vin = [VO − 0.5] V, IO = 0 mA (Notes 2, 3)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Current Limit",
"symbol": "ILIMIT",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 450,
"max": null,
"conditions": "Vin = [VO + 1] V, VO Shorted",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Thermal Shutdown",
"symbol": "",
"kind": "thermal",
"unit": "°C",
"min": null,
"typ": 150,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output Noise Voltage (CL = 1.0 µF)",
"symbol": "Vn",
"kind": "electrical",
"unit": "Vrms",
"min": null,
"typ": 160,
"max": null,
"conditions": "CL = 1.0 µF, IO = 50 mA (10 Hz to 100 kHz)",
"source_page": 3,
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{
"name": "Output Noise Voltage (CL = 200 µF)",
"symbol": "Vn",
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"min": null,
"typ": 46,
"max": null,
"conditions": "CL = 200 µF, IO = 50 mA (10 Hz to 100 kHz)",
"source_page": 3,
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{
"name": "Input Voltage",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "Vdc",
"min": null,
"typ": null,
"max": 13,
"conditions": "",
"source_page": 2,
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{
"name": "Output Current",
"symbol": "IO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 300,
"conditions": "",
"source_page": 2,
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{
"name": "Maximum Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
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{
"name": "Operating Ambient Temperature Range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 2,
"source": "datasheet"
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{
"name": "Storage Temperature Range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD Human Body Model (HBM)",
"symbol": "ESD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 4000,
"conditions": "Human Body Model (HBM)",
"source_page": 2,
"source": "datasheet"
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{
"name": "ESD Machine Model (MM)",
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"min": null,
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"conditions": "Machine Model (MM)",
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{
"name": "Thermal Resistance, Junction-to-Air (SOT-223, ST suffix)",
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"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 245,
"max": null,
"conditions": "Case 318E (SOT−223) ST Suffix",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal Resistance, Junction-to-Case (SOT-223, ST suffix)",
"symbol": "RJC",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 15,
"max": null,
"conditions": "Case 318E (SOT−223) ST Suffix",
"source_page": 2,
"source": "datasheet"
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]
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{
"mpn": "MC33275ST-3.3T3GD",
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"mpn": "MC33275ST-3.3T3GDT",
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{
"mpn": "MC33275ST-3.3T3GMN",
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"updated_at": "2026-09-28T18:47:47.003Z"
}