component
LM2576 3A Step-Down Regulator
Public Made by Adomby adom
3 A step-down (buck) switching regulator with a 52 kHz internal oscillator and few external parts.
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page.json+103−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "lm2576",+ "title": "LM2576 3A Step-Down Regulator",+ "brief": "3 A step-down (buck) switching regulator with a 52 kHz internal oscillator and few external parts.", "version": "0.1.0",- "type": "component",- "description": "3 A step-down (buck) switching regulator with a 52 kHz internal oscillator and few external parts.",+ "license": "CC-BY-SA-4.0", "tags": [ "buck", "regulator",@@ -12,6 +15,103 @@ "ti", "to-263" ],+ "component": {+ "mpn": "LM2576",+ "manufacturer": "Texas Instruments",+ "package": "TO-263-5",+ "pin_count": 5,+ "category": "Power Management",+ "subcategory": "Switching Regulator (Buck)",+ "datasheet": "https://www.ti.com/lit/ds/symlink/lm2576.pdf",+ "parts": {+ "symbol": "lm2576.kicad_sym",+ "footprint": "lm2576.kicad_mod",+ "model_3d": "lm2576.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply input pin to the collector of the internal high-side power transistor. Connect to the unregulated DC input (7 V to 40 V for LM2576; up to 60 V for LM2576HV). Path from VIN to the high-frequency bypass CIN and GND must be as short as possible."+ },+ {+ "number": "2",+ "name": "OUTPUT",+ "type": "output",+ "description": "Emitter pin of the internal power transistor - the switching node of the buck converter. Attach this pin to the inductor and to the cathode of the external freewheeling (catch) diode."+ },+ {+ "number": "3",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference. Return path for CIN must be as short as possible for stable switching operation."+ },+ {+ "number": "4",+ "name": "FEEDBACK",+ "type": "input",+ "description": "Feedback sense input. On the ADJ version, connect to the midpoint of the external resistor divider to set VOUT (VREF = 1.23 V). On fixed-output versions (3.3/5/12/15 V), connect this pin directly to the output capacitor."+ },+ {+ "number": "5",+ "name": "~{ON}/OFF",+ "type": "input",+ "description": "Active-low enable input for the regulator. HIGH = OFF (shutdown, ~50 uA typical standby); LOW = ON. Tie to GND to permanently enable the regulator. Do not leave floating. Input voltage range -0.3 V to +VIN."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/lm2576.pdf",+ "pages": 45,+ "sha256": "ed17313084806fc0",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "Buck (step-down) switching regulator",+ "Output current": "3 A",+ "Output voltage": "5 V fixed (this version)",+ "Input voltage": "Up to 40 V",+ "Switching frequency": "52 kHz typ",+ "Efficiency": "77% typ",+ "Line/load regulation": "Internally compensated",+ "Operating temperature": "-40 C to 125 C (junction)"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "3A buck regulator",+ "step-down converter",+ "simple switcher",+ "5V rail from 12V"+ ],+ "discovery_pitch": "A 3 A buck regulator that needs only an inductor, diode, and caps to step a higher rail down to 5 V.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -27,10 +127,5 @@ "docs/lm2576-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }