component
TPS54331
Public Made by Adomby adom
TI 3 A step-down converter with integrated FET, SOIC-8. 3.5-28 V input, 570 kHz. Datasheet-verified.
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component page: CAD + datasheet-first provenance (official mfr datasheet)
1 file changed
+122−8
page.json+122−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "tps54331",+ "title": "TPS54331",+ "brief": "TI 3 A step-down converter with integrated FET, SOIC-8. 3.5-28 V input, 570 kHz. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI 3 A step-down converter with integrated FET, SOIC-8. 3.5-28 V input, 570 kHz. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "power",@@ -13,6 +16,122 @@ "soic-8", "texas-instruments" ],+ "component": {+ "mpn": "TPS54331",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management",+ "subcategory": "3 A step-down (buck) converter",+ "datasheet": "https://www.ti.com/lit/ds/symlink/tps54331.pdf",+ "parts": {+ "symbol": "tps54331.kicad_sym",+ "footprint": "tps54331.kicad_mod",+ "model_3d": "tps54331.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "BOOT",+ "type": "power_out",+ "description": "Bootstrap capacitor node for the internal high-side N-channel MOSFET gate driver. A 0.1-\u00b5F ceramic capacitor is required between BOOT and PH. Absolute-max BOOT-to-GND is 38 V and BOOT-PH is 8 V; if the BOOT-PH voltage falls below the minimum, the high-side MOSFET is turned off until the bootstrap cap is refreshed."+ },+ {+ "number": "2",+ "name": "VIN",+ "type": "power_in",+ "description": "3.5-V to 28-V input supply pin. Absolute max 30 V; recommended operating range 3.5-28 V. Bypass to GND with a low-ESR ceramic capacitor placed close to the pin."+ },+ {+ "number": "3",+ "name": "EN",+ "type": "input",+ "description": "Enable input. Float to enable; pull below 1.25 V (typ enable threshold) to disable. A resistor divider from VIN to EN to GND programs the input UVLO with two resistors (uses the small hysteresis current, ~-1 \u00b5A at threshold and ~-4 \u00b5A at threshold+50 mV). Absolute-max 6 V."+ },+ {+ "number": "4",+ "name": "SS",+ "type": "input",+ "description": "Slow-start pin. An external capacitor from SS to GND sets the output voltage rise time (charge current ~2 \u00b5A at V(SS)=0.4 V). SS-to-VSENSE matching typ 10 mV. Absolute-max 3 V."+ },+ {+ "number": "5",+ "name": "VSENSE",+ "type": "input",+ "description": "Inverting input of the internal transconductance (gm) error amplifier. Connect the feedback resistor divider from the regulated output to VSENSE (reference voltage 0.8 V typ, 0.772-0.828 V). Absolute-max 3 V."+ },+ {+ "number": "6",+ "name": "COMP",+ "type": "output",+ "description": "Error-amplifier output and input to the PWM comparator. Connect the type-II frequency compensation network (typically Rc + Cc series to GND with optional high-frequency Cp) to this pin. Error-amp gm 92 \u00b5mhos, \u00b17 \u00b5A source/sink typ. Absolute-max 3 V."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground. Return for all internal circuitry; must be tied to system ground (and to the exposed PowerPAD on the DDA package)."+ },+ {+ "number": "8",+ "name": "PH",+ "type": "power_out",+ "description": "Switch node - source of the internal high-side power MOSFET. Connect the external inductor to PH and the freewheeling Schottky rectifier cathode to PH. Absolute-max range -0.6 V to 30 V (10-ns transients to -5 V allowed); peak sink current up to 9 A."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/tps54331.pdf",+ "pages": 41,+ "sha256": "cf72dfd0ac69eec6",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "Step-down (buck) converter, integrated FET",+ "Output current": "3 A",+ "Input voltage": "3.5-28 V",+ "Output voltage": "down to 0.8 V",+ "Switching frequency": "570 kHz",+ "Control": "voltage-mode, external COMP",+ "Protection": "current limit + thermal shutdown",+ "Package": "SOIC-8"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "tps54331",+ "3a buck converter",+ "step down converter",+ "integrated fet buck",+ "28v buck"+ ],+ "discovery_pitch": "TPS54331 3 A step-down (buck) converter with integrated FET (SOIC-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -28,10 +147,5 @@ "docs/tps54331-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }