component
LM2673SX-ADJ
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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+44@@ -0,0 +1,44 @@+# LM2673SX-ADJ++**Texas Instruments** · DC-DC Converters · TO-263-7++LM2673SX-ADJ from Texas Instruments, in a TO-263-7. 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 | Switch output | output | Source pin of the internal High Side FET and switching node; attach to an inductor and the cathode of the external diode. |+| 2 | Input | power_in | Supply input pin to collector pin of high side FET; connect to power supply and input bypass capacitors CIN with path to ground as short as possible. |+| 3 | CB | input | Bootstrap capacitor connection for high-side driver; connect a high quality 100-nF capacitor from CB to Switch output pin. |+| 4 | GND | power_in | Power ground pin; connect to system ground and ground pins of CIN and COUT with path to CIN as short as possible. |+| 5 | Current adjust | input | Current Limit adjust pin; connect a resistor from this pin to ground to set the current limit per ICL equals 37,125 divided by RADJ in amperes. |+| 6 | FB | input | Feedback sense input pin; connect to the midpoint of feedback divider to set VOUT for adjustable version or directly to output capacitor for fixed versions. |+| 7 | SS | input | Soft-start pin; connect a capacitor from this pin to ground to control output voltage ramp, or leave floating if soft-start feature is not desired. |+| 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: `LM2673SX-ADJ`+- Footprint: `Package_TO_SOT_SMD:TO-263-7_TabPin8`+- 3D model: TO-263-7 (KiCad packages3D, STEP)+- 3D model files: `lm2673sx-adj-etched.step` / `lm2673sx-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2673sx-adj.step` / `lm2673sx-adj.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/lm2673) (38 pp, sha256 `0d2838b8538afc10`, retrieved 2026-09-24, tier: lcsc)+- **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/lm2673sx-adj-datasheet.pdf)
page.jsonadded+143@@ -0,0 +1,143 @@+{+ "slug": "lm2673sx-adj",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, TO-263-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm2673sx-adj",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm2673sx-adj.kicad_sym",+ "lm2673sx-adj.kicad_mod",+ "lm2673sx-adj.glb",+ "lm2673sx-adj.step",+ "lm2673sx-adj.lbr",+ "docs/hero.png",+ "docs/lm2673sx-adj-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM2673SX-ADJ",+ "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/lm2673",+ "parts": {+ "symbol": "lm2673sx-adj.kicad_sym",+ "footprint": "lm2673sx-adj.kicad_mod",+ "model_3d": "lm2673sx-adj-etched.glb",+ "model_3d_plain": "lm2673sx-adj.glb",+ "model_3d_step": "lm2673sx-adj-etched.step",+ "model_3d_step_plain": "lm2673sx-adj.step",+ "lbr": "lm2673sx-adj.lbr"+ },+ "distributor_links": {+ "lcsc": "C2877273"+ },+ "pins": [+ {+ "number": "1",+ "name": "Switch output",+ "type": "output",+ "description": "Source pin of the internal High Side FET and switching node; attach to an inductor and the cathode of the external diode."+ },+ {+ "number": "2",+ "name": "Input",+ "type": "power_in",+ "description": "Supply input pin to collector pin of high side FET; connect to power supply and input bypass capacitors CIN with path to ground as short as possible."+ },+ {+ "number": "3",+ "name": "CB",+ "type": "input",+ "description": "Bootstrap capacitor connection for high-side driver; connect a high quality 100-nF capacitor from CB to Switch output pin."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Power ground pin; connect to system ground and ground pins of CIN and COUT with path to CIN as short as possible."+ },+ {+ "number": "5",+ "name": "Current adjust",+ "type": "input",+ "description": "Current Limit adjust pin; connect a resistor from this pin to ground to set the current limit per ICL equals 37,125 divided by RADJ in amperes."+ },+ {+ "number": "6",+ "name": "FB",+ "type": "input",+ "description": "Feedback sense input pin; connect to the midpoint of feedback divider to set VOUT for adjustable version or directly to output capacitor for fixed versions."+ },+ {+ "number": "7",+ "name": "SS",+ "type": "input",+ "description": "Soft-start pin; connect a capacitor from this pin to ground to control output voltage ramp, or leave floating if soft-start feature is not desired."+ },+ {+ "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"+ ],+ "pages_sent": 38,+ "cost_usd": 0.3957,+ "at": "2026-09-24T00:35:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm2673",+ "pages": 38,+ "sha256": "0d2838b8538afc10",+ "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]"+ }+}