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LM2576R-5.0
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HTC Korea TAEJIN Tech LM2576R 5 0 DC-DC Converters, TO-263-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
main
Ray
lm2576r-5-0: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain ST…
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"name": "VIN",
"type": "power_in",
"description": "Positive input supply for the LM2576 step-down switching regulator. Operating range 8V-40V for the 5.0V version; absolute maximum 45V. Requires an input bypass capacitor (Cin) to minimize voltage transients and supply switching currents."
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{
"number": "2",
"name": "VOUT",
"type": "output",
"description": "Emitter of the internal switching transistor. Delivers up to 3.0A switched output; typical switch saturation voltage VSAT ≈ 1.5V. PCB copper area on this node should be minimized to reduce coupling to sensitive circuitry."
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"name": "GND",
"type": "power_in",
"description": "Circuit ground pin. Return for the internal control circuitry and reference. Layout should provide a low-impedance return path (see application PCB layout guidance)."
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{
"number": "4",
"name": "FEEDBACK",
"type": "input",
"description": "Senses the regulated output voltage to close the control loop. Internally divided (R2/R1) and applied to the internal error amplifier; nominal regulation to 5.0V ±4% on the fixed 5.0V version."
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"description": "TTL-level shutdown input. Threshold typically 1.4V: voltage above this (up to +Vin) shuts the regulator off, dropping supply current to ~80µA; below 1.4V or left open, the regulator is on. Allowed range -0.3V ≤ V ≤ +Vin."
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"name": "Output Voltage (8.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A, TJ=-40 to +125℃)",
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"name": "Oscillator Frequency",
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{
"name": "Max Duty Cycle (\"0\")",
"symbol": "DC",
"kind": "electrical",
"unit": "%",
"min": 94,
"typ": 98,
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"name": "Current Limit (Peak Current)",
"symbol": "ICL",
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{
"name": "Output Leakage Current",
"symbol": "IL",
"kind": "electrical",
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"conditions": "TJ=-40 to +125℃ (Note 6)",
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{
"name": "Standby Quiescent Current",
"symbol": "ISTBY",
"kind": "electrical",
"unit": "µA",
"min": null,
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"max": 200,
"conditions": "ON/OFF Pin = 5.0V (\"off\"), TJ=25℃",
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{
"name": "ON/OFF Pin Input Current, high (Regulator OFF)",
"symbol": "IIH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 15,
"max": 30,
"conditions": "ON/OFF Pin = 5.0V (Regulator OFF), TJ=25℃",
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"source": "datasheet"
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{
"name": "ON/OFF Pin Input Current, low (Regulator ON)",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0,
"max": 0.5,
"conditions": "ON/OFF Pin = 0V (Regulator ON), TJ=25℃",
"source_page": 7,
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{
"name": "Maximum Supply Voltage",
"symbol": "Vin",
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"name": "On/Off Pin Input Voltage",
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"min": -60,
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"conditions": "Soldering, 10 seconds",
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"source_page": 5,
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{
"name": "Operating Junction Temperature Range",
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"kind": "recommended_operating",
"unit": "℃",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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"name": "Supply Voltage",
"symbol": "Vin",
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"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "Thermal Resistance, Junction to Ambient (TO-263 5-Lead)",
"symbol": "θJA",
"kind": "thermal",
"unit": "℃/W",
"min": null,
"typ": 70,
"max": null,
"conditions": "TO-263 5-Lead",
"source_page": 5,
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{
"name": "Thermal Resistance, Junction to Case (TO-263 5-Lead)",
"symbol": "θJC",
"kind": "thermal",
"unit": "℃/W",
"min": null,
"typ": 5,
"max": null,
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"source_page": 5,
"source": "datasheet"
}
]
}
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