component
LP3961EMPX-1.8
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+41@@ -0,0 +1,41 @@+# LP3961EMPX-1.8++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-5++LP3961EMPX-1.8 from Texas Instruments, in a SOT-223-5. 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 | SD | input | Shutdown input with an operating range of −0.3 V to VIN + 0.3 V, and the datasheet requires it to be pulled high through a 10-kΩ pullup resistor. |+| 2 | IN | power_in | Input supply pin for the regulator, specified for 2.5 V to 7 V operation (survival −0.3 V to 7.5 V), with the minimum operating input equal to VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater. |+| 3 | OUT | power_out | Regulated output voltage pin, rated for a maximum DC operating current of 0.8 A, short-circuit protected, with survival voltage −0.3 V to 7.5 V. |+| 4 | ERROR | output | ERROR flag output that goes low when the output voltage drops 10% below nominal, with a maximum voltage of VIN + 0.3 V, and it must be pulled high through a 10-kΩ resistor or connected to ground if unused. |+| 5 | GND | power_in | Ground pin for the regulator. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-223-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LP3961EMPX-1.8`+- Footprint: `Package_TO_SOT_SMD:SOT-223-5`+- 3D model: SOT-223-5, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.45 mm nominal SOT height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `lp3961empx-1-8-etched.step` / `lp3961empx-1-8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3961empx-1-8.step` / `lp3961empx-1-8.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/lp3964) (33 pp, sha256 `84dbca76243c9a35`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (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/lp3961empx-1-8-datasheet.pdf)
page.jsonadded+183@@ -0,0 +1,183 @@+{+ "slug": "lp3961empx-1-8",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lp3961empx-1.8",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp3961empx-1-8.kicad_sym",+ "lp3961empx-1-8.kicad_mod",+ "lp3961empx-1-8.glb",+ "lp3961empx-1-8.step",+ "lp3961empx-1-8.lbr",+ "docs/hero.png",+ "docs/lp3961empx-1-8-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lp3961empx-1-8-hero.glb",+ "lp3961empx-1-8-hero.overlay.json"+ ],+ "component": {+ "mpn": "LP3961EMPX-1.8",+ "manufacturer": "Texas Instruments",+ "package": "SOT-223-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lp3964",+ "parts": {+ "symbol": "lp3961empx-1-8.kicad_sym",+ "footprint": "lp3961empx-1-8.kicad_mod",+ "model_3d": "lp3961empx-1-8-hero.glb",+ "model_3d_plain": "lp3961empx-1-8.glb",+ "model_3d_step": "lp3961empx-1-8-etched.step",+ "model_3d_step_plain": "lp3961empx-1-8.step",+ "lbr": "lp3961empx-1-8.lbr"+ },+ "distributor_links": {+ "lcsc": "C2877959",+ "digikey": "2156-LP3961EMPX-1.8-ND",+ "mouser": "926-LP3961EMPX-18"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T17:58:02Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-LP3961EMPX-1.8-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "926-LP3961EMPX-18",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SD",+ "type": "input",+ "description": "Shutdown input with an operating range of −0.3 V to VIN + 0.3 V, and the datasheet requires it to be pulled high through a 10-kΩ pullup resistor."+ },+ {+ "number": "2",+ "name": "IN",+ "type": "power_in",+ "description": "Input supply pin for the regulator, specified for 2.5 V to 7 V operation (survival −0.3 V to 7.5 V), with the minimum operating input equal to VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater."+ },+ {+ "number": "3",+ "name": "OUT",+ "type": "power_out",+ "description": "Regulated output voltage pin, rated for a maximum DC operating current of 0.8 A, short-circuit protected, with survival voltage −0.3 V to 7.5 V."+ },+ {+ "number": "4",+ "name": "ERROR",+ "type": "output",+ "description": "ERROR flag output that goes low when the output voltage drops 10% below nominal, with a maximum voltage of VIN + 0.3 V, and it must be pulled high through a 10-kΩ resistor or connected to ground if unused."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin for the regulator."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The pin table on page 3 has blank or dropped cells, so the mapping was taken from the column order. ; ERROR pin is listed only in the LP3961 column (pin 4). Its I/O type is given as O in the table, but ; The SD and OUT descriptions use the operating and survival ratings from the Absolute Maximum and Rec"+ ],+ "pages_sent": 9,+ "cost_usd": 0.0714,+ "at": "2026-10-08T17:56:56"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lp3964",+ "pages": 33,+ "sha256": "84dbca76243c9a35",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lp3961empx-1-8.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.46,+ 6.7,+ 1.45+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "93d245764d20fcefd658e474348e5cf1042c75d684b18dc3207967e636396422",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lp3961empx-1-8-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.46,+ 6.7,+ 1.45+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "b5d8dd6dfe3f7a0014528235052499a5233c0cde2d9c6b1537cd9c1e7a0fd321",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}