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TPS54331DDA
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Texas Instruments DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# TPS54331DDA++**Texas Instruments** · DC-DC Converters · ESOP-8++TPS54331DDA from Texas Instruments, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | BOOT | output | Bootstrap voltage output for high-side MOSFET gate drive; requires 0.1μF capacitor between BOOT and PH pins to maintain gate bias voltage above 2.1V minimum. |+| 2 | VIN | power_in | Input power supply voltage pin; supports 3.5V to 28V operating range. |+| 3 | EN | input | Enable/disable control input; pull below 1.25V to disable converter or leave floating to enable; UVLO threshold programmable using external resistor divider. |+| 4 | SS | input | Slow start input; connect external capacitor to set output rise time from 1ms to 10ms using 2μA charge current. |+| 5 | VSENSE | input | Feedback input to inverting node of transconductance error amplifier for output voltage regulation and current limiting. |+| 6 | COMP | output | Error amplifier output and PWM comparator input; connect external frequency compensation network between this pin and ground. |+| 7 | GND | power_in | Ground reference pin; low-side MOSFET source connection and current return path. |+| 8 | PH | output | High-side MOSFET source output; internal 80mΩ MOSFET switch node with 570kHz fixed switching frequency. |+| 9 | PowerPAD | power_in | Exposed thermal pad for ground connection and heat dissipation; must be connected to ground plane for proper thermal performance (DDA package only). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | ESOP-8 |+| Category | Power Management (PMIC) |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `TPS54331DDA`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)+- 3D model files: `tps54331dda-etched.step` / `tps54331dda-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps54331dda.step` / `tps54331dda.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps54331) (40 pp, sha256 `6ac89d4fddb009ba`, retrieved 2026-09-24, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tps54331dda-datasheet.pdf)
page.jsonadded+147@@ -0,0 +1,147 @@+{+ "slug": "tps54331dda",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "tps54331dda",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tps54331dda.kicad_sym",+ "tps54331dda.kicad_mod",+ "tps54331dda.glb",+ "tps54331dda.step",+ "tps54331dda.lbr",+ "docs/hero.png",+ "docs/tps54331dda-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TPS54331DDA",+ "manufacturer": "Texas Instruments",+ "package": "ESOP-8",+ "pin_count": 9,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tps54331",+ "parts": {+ "symbol": "tps54331dda.kicad_sym",+ "footprint": "tps54331dda.kicad_mod",+ "model_3d": "tps54331dda-etched.glb",+ "model_3d_plain": "tps54331dda.glb",+ "model_3d_step": "tps54331dda-etched.step",+ "model_3d_step_plain": "tps54331dda.step",+ "lbr": "tps54331dda.lbr"+ },+ "distributor_links": {+ "lcsc": "C1355528"+ },+ "pins": [+ {+ "number": "1",+ "name": "BOOT",+ "type": "output",+ "description": "Bootstrap voltage output for high-side MOSFET gate drive; requires 0.1μF capacitor between BOOT and PH pins to maintain gate bias voltage above 2.1V minimum."+ },+ {+ "number": "2",+ "name": "VIN",+ "type": "power_in",+ "description": "Input power supply voltage pin; supports 3.5V to 28V operating range."+ },+ {+ "number": "3",+ "name": "EN",+ "type": "input",+ "description": "Enable/disable control input; pull below 1.25V to disable converter or leave floating to enable; UVLO threshold programmable using external resistor divider."+ },+ {+ "number": "4",+ "name": "SS",+ "type": "input",+ "description": "Slow start input; connect external capacitor to set output rise time from 1ms to 10ms using 2μA charge current."+ },+ {+ "number": "5",+ "name": "VSENSE",+ "type": "input",+ "description": "Feedback input to inverting node of transconductance error amplifier for output voltage regulation and current limiting."+ },+ {+ "number": "6",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output and PWM comparator input; connect external frequency compensation network between this pin and ground."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin; low-side MOSFET source connection and current return path."+ },+ {+ "number": "8",+ "name": "PH",+ "type": "output",+ "description": "High-side MOSFET source output; internal 80mΩ MOSFET switch node with 570kHz fixed switching frequency."+ },+ {+ "number": "9",+ "name": "PowerPAD",+ "type": "power_in",+ "description": "Exposed thermal pad for ground connection and heat dissipation; must be connected to ground plane for proper thermal performance (DDA package only)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 40,+ "cost_usd": 0.3461,+ "at": "2026-09-24T07:40:10"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps54331",+ "pages": 40,+ "sha256": "6ac89d4fddb009ba",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 9,+ "described": 9,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}