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LP2951ACMMX-3.3
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Texas Instruments Linear Voltage Regulators (LDO), VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# LP2951ACMMX-3.3++**Texas Instruments** · Linear Voltage Regulators (LDO) · VSSOP-8-0.65mm++LP2951ACMMX-3.3 from Texas Instruments, in a VSSOP-8-0.65mm. 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 | OUT | output | Regulated output voltage for the LP2951ACMMX-3.3 (3.3 V option), which the datasheet ensures can deliver 100 mA output current. |+| 2 | SENSE | input | Output voltage sense input that is tied to OUT in the 8-pin test configuration. |+| 3 | SHUTDOWN | input | Disable device input, with electrical characteristics specified at VSHUTDOWN ≤ 0.8 V. |+| 4 | GND | power_in | Ground reference pin for the regulator. |+| 5 | ERROR | output | Error flag output that warns of output dropout (low output voltage). |+| 6 | VTAP | output | Internal resistor divider output, tied to FEEDBACK for the fixed-output test configuration. |+| 7 | FEEDBACK | input | Voltage feedback input with an absolute maximum range of −1.5 V to 30 V. |+| 8 | IN | power_in | Input supply voltage, with a recommended operating range of 2.3 V to 30 V and a 30 V maximum. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8-0.65mm |+| Category | Power Supply Chip |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LP2951ACMMX-3.3`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)+- 3D model files: `lp2951acmmx-3-3-etched.step` / `lp2951acmmx-3-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2951acmmx-3-3.step` / `lp2951acmmx-3-3.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/lp2951-n) (62 pp, sha256 `b9e1f8851a20b9c9`, retrieved 2026-10-07, 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/lp2951acmmx-3-3-datasheet.pdf)
page.jsonadded+201@@ -0,0 +1,201 @@+{+ "slug": "lp2951acmmx-3-3",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Linear Voltage Regulators (LDO), VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "lp2951acmmx-3.3",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp2951acmmx-3-3.kicad_sym",+ "lp2951acmmx-3-3.kicad_mod",+ "lp2951acmmx-3-3.glb",+ "lp2951acmmx-3-3.step",+ "lp2951acmmx-3-3.lbr",+ "docs/hero.png",+ "docs/lp2951acmmx-3-3-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lp2951acmmx-3-3-hero.glb",+ "lp2951acmmx-3-3-hero.overlay.json"+ ],+ "component": {+ "mpn": "LP2951ACMMX-3.3",+ "manufacturer": "Texas Instruments",+ "package": "VSSOP-8-0.65mm",+ "pin_count": 8,+ "category": "Power Supply Chip",+ "subcategory": "Linear Voltage Regulators (LDO)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lp2951-n",+ "parts": {+ "symbol": "lp2951acmmx-3-3.kicad_sym",+ "footprint": "lp2951acmmx-3-3.kicad_mod",+ "model_3d": "lp2951acmmx-3-3-hero.glb",+ "model_3d_plain": "lp2951acmmx-3-3.glb",+ "model_3d_step": "lp2951acmmx-3-3-etched.step",+ "model_3d_step_plain": "lp2951acmmx-3-3.step",+ "lbr": "lp2951acmmx-3-3.lbr"+ },+ "distributor_links": {+ "lcsc": "C2863700",+ "digikey": "LP2951ACMMX-3.3-ND",+ "mouser": "926-LP2951ACMMX-33"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T23:59:49Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LP2951ACMMX-3.3-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-LP2951ACMMX-33",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "OUT",+ "type": "output",+ "description": "Regulated output voltage for the LP2951ACMMX-3.3 (3.3 V option), which the datasheet ensures can deliver 100 mA output current."+ },+ {+ "number": "2",+ "name": "SENSE",+ "type": "input",+ "description": "Output voltage sense input that is tied to OUT in the 8-pin test configuration."+ },+ {+ "number": "3",+ "name": "SHUTDOWN",+ "type": "input",+ "description": "Disable device input, with electrical characteristics specified at VSHUTDOWN ≤ 0.8 V."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin for the regulator."+ },+ {+ "number": "5",+ "name": "ERROR",+ "type": "output",+ "description": "Error flag output that warns of output dropout (low output voltage)."+ },+ {+ "number": "6",+ "name": "VTAP",+ "type": "output",+ "description": "Internal resistor divider output, tied to FEEDBACK for the fixed-output test configuration."+ },+ {+ "number": "7",+ "name": "FEEDBACK",+ "type": "input",+ "description": "Voltage feedback input with an absolute maximum range of −1.5 V to 30 V."+ },+ {+ "number": "8",+ "name": "IN",+ "type": "power_in",+ "description": "Input supply voltage, with a recommended operating range of 2.3 V to 30 V and a 30 V maximum."+ }+ ],+ "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: Pin numbers and functions come from the LP2951-N 'Pin Functions' table, which lists one column share; The datasheet calls ERROR an 'Error output' without stating whether it is open-collector or push-pul; The datasheet gives VSHUTDOWN ≤ 0.8 V only as a test condition and does not define the logic thresho"+ ],+ "pages_sent": 17,+ "cost_usd": 0.1087,+ "at": "2026-10-07T23:59:32"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lp2951-n",+ "pages": 62,+ "sha256": "b9e1f8851a20b9c9",+ "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"+ },+ "models_3d": [+ {+ "file": "lp2951acmmx-3-3.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lp2951acmmx-3-3-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "0946c15f3e989cfc00eeb6cdbd5fe910a0e6eec8df1f5ff56d7633908a833ce0",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}