component
LM2596 (adjustable buck)
Public Made by Adomby adom
TI 150 kHz 3 A adjustable buck regulator, TO-263. VOUT 1.2-37 V, integrated switch. Datasheet-verified.
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page.json+104−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "lm2596-adj",+ "title": "LM2596 (adjustable buck)",+ "brief": "TI 150 kHz 3 A adjustable buck regulator, TO-263. VOUT 1.2-37 V, integrated switch. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI 150 kHz 3 A adjustable buck regulator, TO-263. VOUT 1.2-37 V, integrated switch. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "regulator",@@ -11,6 +14,104 @@ "to-263", "texas-instruments" ],+ "component": {+ "mpn": "LM2596S-ADJ",+ "manufacturer": "Texas Instruments",+ "package": "TO-263-5 (D2PAK)",+ "pin_count": 5,+ "category": "Power Management",+ "subcategory": "Buck switching regulator",+ "datasheet": "https://www.ti.com/lit/ds/symlink/lm2596.pdf",+ "parts": {+ "symbol": "lm2596-adj.kicad_sym",+ "footprint": "lm2596-adj.kicad_mod",+ "model_3d": "lm2596-adj.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Positive input supply for the switching regulator, 4.5 V to 40 V operating (45 V absolute max). A low-ESR bypass capacitor must be placed directly at this pin to supply the switch currents and minimize input transients."+ },+ {+ "number": "2",+ "name": "Output",+ "type": "output",+ "description": "Internal high-side switch node (SW). Swings between approximately (VIN - VSAT) and about -0.5 V (catch-diode drop) with duty cycle VOUT/VIN; connect to the external inductor and Schottky catch diode. PCB copper area on this node must be minimized to reduce EMI coupling."+ },+ {+ "number": "3",+ "name": "GND",+ "type": "power_in",+ "description": "Circuit ground and power return for the regulator. On the TO-263 (KTT) package the metal tab is also GND."+ },+ {+ "number": "4",+ "name": "FB",+ "type": "input",+ "description": "Feedback input to the error amplifier, regulated to VREF = 1.23 V (typ) on the -ADJ version. Connect to the R1/R2 external divider from VOUT: VOUT = 1.23 V x (1 + R2/R1). Feedback bias current is typically 10 nA (50 nA max at 25 degC). Absolute-max range -0.3 V to 25 V."+ },+ {+ "number": "5",+ "name": "ON/OFF",+ "type": "input",+ "description": "TTL-compatible active-low shutdown input. Pulling below ~1.3 V (or tying to GND / leaving open) enables the regulator; driving above ~1.3 V (up to 25 V max) shuts it down and drops total supply current to ~80 uA typ. Internally clamped; input current 5 uA typ at VLOGIC = 2.5 V."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/lm2596.pdf",+ "pages": 47,+ "sha256": "fbd0a8af4dcd4c37",+ "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",+ "Switching frequency": "150 kHz (fixed)",+ "Output current": "3 A",+ "Output voltage": "1.2-37 V adjustable (VREF 1.23 V)",+ "Input voltage": "up to 40 V",+ "Control": "TTL-compatible ON/OFF",+ "Protection": "Thermal shutdown + cycle-by-cycle current limit",+ "Package": "TO-263-5 (D2PAK)",+ "Body (L\u00d7W\u00d7H)": "10.2 \u00d7 8.4 \u00d7 4.6 mm"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "lm2596",+ "3a buck regulator",+ "adjustable step-down converter",+ "lm2596 dc-dc"+ ],+ "discovery_pitch": "LM2596S-ADJ 150 kHz 3 A adjustable buck switching regulator (TO-263) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -26,10 +127,5 @@ "docs/lm2596-adj-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }