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LP2951-33QDRGRQ1
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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, WSON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# LP2951-33QDRGRQ1++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · WSON-8-EP(3x3)++LP2951-33QDRGRQ1 from Texas Instruments, in a WSON-8-EP(3x3). 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 | OUTPUT | output | Regulated output voltage pin; output capacitor of 1µF minimum from OUTPUT to GND required for stability. |+| 2 | SENSE | input | Output voltage sense input; connect to OUTPUT (with FEEDBACK to VTAP) for fixed output configuration only, otherwise leave floating. |+| 3 | SHUTDOWN | input | Active-high shutdown control input; high-level voltage disables regulator output, low-level voltage enables output. |+| 4 | GND | power_in | Ground reference connection. |+| 5 | ERROR | tri_state | Open-drain fault output pin; asserts low when VOUT drops 6% below nominal value. |+| 6 | VTAP | output | Internal voltage divider tap output; connect to FEEDBACK for fixed output configuration, otherwise leave floating. |+| 7 | FEEDBACK | input | Feedback input pin determining output voltage; connect to VTAP (with OUTPUT to SENSE) for fixed output, or connect to external resistor divider for adjustable output. |+| 8 | INPUT | power_in | Input power supply pin; 1µF minimum decoupling capacitor to GND recommended. |+| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WSON-8-EP(3x3) |+| Category | Power Management (PMIC) |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `LP2951-33QDRGRQ1`+- Footprint: `Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm`+- 3D model: WSON-8-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `lp2951-33qdrgrq1-etched.step` / `lp2951-33qdrgrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2951-33qdrgrq1.step` / `lp2951-33qdrgrq1.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-q1) (45 pp, sha256 `62996f437fc72636`, retrieved 2026-10-07, 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 0.3`, primary `claude-haiku-4-5-20251001` (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/lp2951-33qdrgrq1-datasheet.pdf)
page.jsonadded+207@@ -0,0 +1,207 @@+{+ "slug": "lp2951-33qdrgrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, WSON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lp2951-33qdrgrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp2951-33qdrgrq1.kicad_sym",+ "lp2951-33qdrgrq1.kicad_mod",+ "lp2951-33qdrgrq1.glb",+ "lp2951-33qdrgrq1.step",+ "lp2951-33qdrgrq1.lbr",+ "docs/hero.png",+ "docs/lp2951-33qdrgrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lp2951-33qdrgrq1-hero.glb",+ "lp2951-33qdrgrq1-hero.overlay.json"+ ],+ "component": {+ "mpn": "LP2951-33QDRGRQ1",+ "manufacturer": "Texas Instruments",+ "package": "WSON-8-EP(3x3)",+ "pin_count": 9,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lp2951-q1",+ "parts": {+ "symbol": "lp2951-33qdrgrq1.kicad_sym",+ "footprint": "lp2951-33qdrgrq1.kicad_mod",+ "model_3d": "lp2951-33qdrgrq1-hero.glb",+ "model_3d_plain": "lp2951-33qdrgrq1.glb",+ "model_3d_step": "lp2951-33qdrgrq1-etched.step",+ "model_3d_step_plain": "lp2951-33qdrgrq1.step",+ "lbr": "lp2951-33qdrgrq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C2876156",+ "digikey": "296-35702-2-ND",+ "mouser": "595-LP2951-33QDRGRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T02:42:24Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-35702-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-LP2951-33QDRGRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "OUTPUT",+ "type": "output",+ "description": "Regulated output voltage pin; output capacitor of 1µF minimum from OUTPUT to GND required for stability."+ },+ {+ "number": "2",+ "name": "SENSE",+ "type": "input",+ "description": "Output voltage sense input; connect to OUTPUT (with FEEDBACK to VTAP) for fixed output configuration only, otherwise leave floating."+ },+ {+ "number": "3",+ "name": "SHUTDOWN",+ "type": "input",+ "description": "Active-high shutdown control input; high-level voltage disables regulator output, low-level voltage enables output."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference connection."+ },+ {+ "number": "5",+ "name": "ERROR",+ "type": "tri_state",+ "description": "Open-drain fault output pin; asserts low when VOUT drops 6% below nominal value."+ },+ {+ "number": "6",+ "name": "VTAP",+ "type": "output",+ "description": "Internal voltage divider tap output; connect to FEEDBACK for fixed output configuration, otherwise leave floating."+ },+ {+ "number": "7",+ "name": "FEEDBACK",+ "type": "input",+ "description": "Feedback input pin determining output voltage; connect to VTAP (with OUTPUT to SENSE) for fixed output, or connect to external resistor divider for adjustable output."+ },+ {+ "number": "8",+ "name": "INPUT",+ "type": "power_in",+ "description": "Input power supply pin; 1µF minimum decoupling capacitor to GND recommended."+ },+ {+ "number": "9",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Exposed thermal pad (EP) shown in Figure 4-2 diagram is not formally documented in Table 4-1 with pi",+ "exposed pad 9 added from the footprint"+ ],+ "pages_sent": 22,+ "cost_usd": 0.1806,+ "at": "2026-10-07T02:42:02"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lp2951-q1",+ "pages": 45,+ "sha256": "62996f437fc72636",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 9,+ "described": 9,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lp2951-33qdrgrq1.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 2.98,+ 0.82+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "cbee016fb8ee69c44b13d8818fcf65dcf240f5fdca70b22700521eb617c5311a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lp2951-33qdrgrq1-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 2.98,+ 0.82+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d85314e305953c2eba1883bfaa402dd4bf52b6976731c9a99862921e2507c112",+ "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]"+ }+}