component
LM22678TJ-5.0
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TO-263-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# LM22678TJ-5.0++**Texas Instruments** · DC-DC Converters · TO-263-7++LM22678TJ-5.0 from Texas Instruments, in a TO-263-7. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SW | output | Switching output of regulator with maximum voltage equal to VIN and minimum voltage of -10V for pulses up to 50ns. |+| 2 | VIN | power_in | Supply input to the regulator with input voltage range of 4.5V to 42V. |+| 3 | BOOT | input | Bootstrap input that provides gate voltage for the high-side NFET with maximum voltage of VSW + 7V. |+| 4 | GND | power_in | Ground pin and system common reference for the regulator. |+| 5 | NC | unconnected | Not electrically connected inside the chip but functions as a thermal conductor. |+| 6 | FB | input | Feedback input for output voltage regulation with absolute maximum voltage from -0.5V to 7V. |+| 7 | EN | input | Enable input used to control regulator start-up and shutdown with precision threshold of 1.6V (falling) and hysteresis of 0.6V. |+| 8 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TO-263-7 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LM22678TJ-5.0`+- Footprint: `Package_TO_SOT_SMD:TO-263-7_TabPin8`+- 3D model: TO-263-7 (KiCad packages3D, STEP)+- 3D model files: `lm22678tj-5-0-etched.step` / `lm22678tj-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm22678tj-5-0.step` / `lm22678tj-5-0.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/lm22678) (30 pp, sha256 `6d9377233020f9a7`, retrieved 2026-09-23, 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/lm22678tj-5-0-datasheet.pdf)
page.jsonadded+144@@ -0,0 +1,144 @@+{+ "slug": "lm22678tj-5-0",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, TO-263-7. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm22678tj-5.0",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm22678tj-5-0.kicad_sym",+ "lm22678tj-5-0.kicad_mod",+ "lm22678tj-5-0.glb",+ "lm22678tj-5-0.step",+ "lm22678tj-5-0.lbr",+ "docs/hero.png",+ "docs/lm22678tj-5-0-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM22678TJ-5.0",+ "manufacturer": "Texas Instruments",+ "package": "TO-263-7",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm22678",+ "parts": {+ "symbol": "lm22678tj-5-0.kicad_sym",+ "footprint": "lm22678tj-5-0.kicad_mod",+ "model_3d": "lm22678tj-5-0-etched.glb",+ "model_3d_plain": "lm22678tj-5-0.glb",+ "model_3d_step": "lm22678tj-5-0-etched.step",+ "model_3d_step_plain": "lm22678tj-5-0.step",+ "lbr": "lm22678tj-5-0.lbr"+ },+ "distributor_links": {+ "lcsc": "C527397"+ },+ "pins": [+ {+ "number": "1",+ "name": "SW",+ "type": "output",+ "description": "Switching output of regulator with maximum voltage equal to VIN and minimum voltage of -10V for pulses up to 50ns."+ },+ {+ "number": "2",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply input to the regulator with input voltage range of 4.5V to 42V."+ },+ {+ "number": "3",+ "name": "BOOT",+ "type": "input",+ "description": "Bootstrap input that provides gate voltage for the high-side NFET with maximum voltage of VSW + 7V."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin and system common reference for the regulator."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "Not electrically connected inside the chip but functions as a thermal conductor."+ },+ {+ "number": "6",+ "name": "FB",+ "type": "input",+ "description": "Feedback input for output voltage regulation with absolute maximum voltage from -0.5V to 7V."+ },+ {+ "number": "7",+ "name": "EN",+ "type": "input",+ "description": "Enable input used to control regulator start-up and shutdown with precision threshold of 1.6V (falling) and hysteresis of 0.6V."+ },+ {+ "number": "8",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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": [+ "exposed pad 8 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 30,+ "cost_usd": 0.2976,+ "at": "2026-09-23T14:44:21"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm22678",+ "pages": 30,+ "sha256": "6d9377233020f9a7",+ "source_tier": "lcsc"+ },+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}