component
LMR51420XDDCR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# LMR51420XDDCR++**Texas Instruments** · DC-DC Converters · SOT-23-6++LMR51420XDDCR from Texas Instruments, in a SOT-23-6. 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 | GND | power_in | Power ground terminal connected to the low-side FET source; must be connected to system ground with the shortest possible path to the input bypass capacitor. |+| 2 | SW | power_out | Switching output node connected to the high-side FET source and low-side FET drain; connect this pin to the power inductor. |+| 3 | VIN | power_in | Supply input terminal for internal bias LDO and high-side FET; connect directly to input supply with input bypass capacitors. |+| 4 | FB | input | Feedback input for voltage regulation through external resistor divider; never short to ground during operation. |+| 5 | EN | input | Precision enable input for ON/OFF control with HIGH = on and LOW = off; cannot be left floating and allows adjustable UVLO through external resistor divider. |+| 6 | CB | power_out | Bootstrap capacitor connection for high-side FET gate driver; connect a 100-nF high-quality ceramic capacitor from this pin to the SW pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-6 |+| Category | Power Management (PMIC) |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `LMR51420XDDCR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)+- 3D model files: `lmr51420xddcr-etched.step` / `lmr51420xddcr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmr51420xddcr.step` / `lmr51420xddcr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836208961990656) (33 pp, sha256 `0ad3d2ef438f42ca`, retrieved 2026-09-23, 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/lmr51420xddcr-datasheet.pdf)
page.jsonadded+129@@ -0,0 +1,129 @@+{+ "slug": "lmr51420xddcr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lmr51420xddcr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lmr51420xddcr.kicad_sym",+ "lmr51420xddcr.kicad_mod",+ "lmr51420xddcr.glb",+ "lmr51420xddcr.step",+ "lmr51420xddcr.lbr",+ "docs/hero.png",+ "docs/lmr51420xddcr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LMR51420XDDCR",+ "manufacturer": "Texas Instruments",+ "package": "SOT-23-6",+ "pin_count": 6,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836208961990656",+ "parts": {+ "symbol": "lmr51420xddcr.kicad_sym",+ "footprint": "lmr51420xddcr.kicad_mod",+ "model_3d": "lmr51420xddcr-etched.glb",+ "model_3d_plain": "lmr51420xddcr.glb",+ "model_3d_step": "lmr51420xddcr-etched.step",+ "model_3d_step_plain": "lmr51420xddcr.step",+ "lbr": "lmr51420xddcr.lbr"+ },+ "distributor_links": {+ "lcsc": "C5246146"+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Power ground terminal connected to the low-side FET source; must be connected to system ground with the shortest possible path to the input bypass capacitor."+ },+ {+ "number": "2",+ "name": "SW",+ "type": "power_out",+ "description": "Switching output node connected to the high-side FET source and low-side FET drain; connect this pin to the power inductor."+ },+ {+ "number": "3",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply input terminal for internal bias LDO and high-side FET; connect directly to input supply with input bypass capacitors."+ },+ {+ "number": "4",+ "name": "FB",+ "type": "input",+ "description": "Feedback input for voltage regulation through external resistor divider; never short to ground during operation."+ },+ {+ "number": "5",+ "name": "EN",+ "type": "input",+ "description": "Precision enable input for ON/OFF control with HIGH = on and LOW = off; cannot be left floating and allows adjustable UVLO through external resistor divider."+ },+ {+ "number": "6",+ "name": "CB",+ "type": "power_out",+ "description": "Bootstrap capacitor connection for high-side FET gate driver; connect a 100-nF high-quality ceramic capacitor from this pin to the SW pin."+ }+ ],+ "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": 33,+ "cost_usd": 0.3091,+ "at": "2026-09-23T11:55:34"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836208961990656",+ "pages": 33,+ "sha256": "0ad3d2ef438f42ca",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 6,+ "described": 6,+ "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]"+ }+}