← Commit history

Initial commit: component/lp2988aimm-3-3

Ray ·9aeb552f6a ·1d ago
2 files changed +243
README.mdadded+44
@@ -0,0 +1,44 @@+# LP2988AIMM-3.3++**Texas Instruments** · Linear Voltage Regulators (LDO) · VSSOP-8++LP2988AIMM-3.3 from Texas Instruments, in a VSSOP-8. 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 | BYPASS | passive | Connects a low-leakage capacitor (e.g. 0.01 µF NPO/COG) to the bandgap reference to reduce output noise on the LP2988. |+| 2 | DELAY | passive | Connect a capacitor (max recommended 1 µF) to set the power-ON reset delay, charged by a 2.2 µA typical current source, with TDELAY = CDLY × 5.59×10^5. |+| 3 | GROUND | power_in | Ground pin of the regulator. |+| 4 | INPUT | power_in | Unregulated supply input, 2.1V to 16V operating, requiring a ≥2.2 µF capacitor within 0.5 inch to ground. |+| 5 | ERROR | output | Open-collector error flag/power-on reset output needing a pull-up resistor, which goes low when the output drops about 5% below nominal (output leakage 0.01 µA typ when high, VOH up to 16V). |+| 6 | SHUTDOWN | input | Active-high enable that turns the output off when driven below VL and on when above VH (−0.3V to +16V), needing a slew rate of at least 40 mV/µs; tie to INPUT if unused. |+| 7 | OUTPUT | power_out | Regulated 3.3V output delivering 200 mA continuous, requiring a minimum 4.7 µF output capacitor with ESR in the stable range. |+| 8 | SENSE | input | Output voltage sense input, with an absolute maximum rating of −0.3V to +6V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8 |+| Category | Power Supply Chip |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LP2988AIMM-3.3`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8 (KiCad packages3D, STEP)+- 3D model files: `lp2988aimm-3-3-etched.step` / `lp2988aimm-3-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2988aimm-3-3.step` / `lp2988aimm-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/lp2988) (38 pp, sha256 `79f49a22be2bfe07`, 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/lp2988aimm-3-3-datasheet.pdf)
page.jsonadded+199
@@ -0,0 +1,199 @@+{+  "slug": "lp2988aimm-3-3",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments Linear Voltage Regulators (LDO), VSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "power supply chip",+    "lp2988aimm-3.3",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "lp2988aimm-3-3.kicad_sym",+    "lp2988aimm-3-3.kicad_mod",+    "lp2988aimm-3-3.glb",+    "lp2988aimm-3-3.step",+    "lp2988aimm-3-3.lbr",+    "docs/hero.png",+    "docs/lp2988aimm-3-3-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "lp2988aimm-3-3-hero.glb",+    "lp2988aimm-3-3-hero.overlay.json"+  ],+  "component": {+    "mpn": "LP2988AIMM-3.3",+    "manufacturer": "Texas Instruments",+    "package": "VSSOP-8",+    "pin_count": 8,+    "category": "Power Supply Chip",+    "subcategory": "Linear Voltage Regulators (LDO)",+    "datasheet": "https://www.ti.com/cn/lit/gpn/lp2988",+    "parts": {+      "symbol": "lp2988aimm-3-3.kicad_sym",+      "footprint": "lp2988aimm-3-3.kicad_mod",+      "model_3d": "lp2988aimm-3-3-hero.glb",+      "model_3d_plain": "lp2988aimm-3-3.glb",+      "model_3d_step": "lp2988aimm-3-3-etched.step",+      "model_3d_step_plain": "lp2988aimm-3-3.step",+      "lbr": "lp2988aimm-3-3.lbr"+    },+    "distributor_links": {+      "lcsc": "C2865252",+      "mouser": "926-LP2988AIMM-33"+    },+    "distributor_check": {+      "checked_at": "2026-10-07T22:41:38Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": null,+        "status": "no match"+      },+      "mouser": {+        "pn": "926-LP2988AIMM-33",+        "status": "found",+        "lifecycle": "Obsolete"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "BYPASS",+        "type": "passive",+        "description": "Connects a low-leakage capacitor (e.g. 0.01 µF NPO/COG) to the bandgap reference to reduce output noise on the LP2988."+      },+      {+        "number": "2",+        "name": "DELAY",+        "type": "passive",+        "description": "Connect a capacitor (max recommended 1 µF) to set the power-ON reset delay, charged by a 2.2 µA typical current source, with TDELAY = CDLY × 5.59×10^5."+      },+      {+        "number": "3",+        "name": "GROUND",+        "type": "power_in",+        "description": "Ground pin of the regulator."+      },+      {+        "number": "4",+        "name": "INPUT",+        "type": "power_in",+        "description": "Unregulated supply input, 2.1V to 16V operating, requiring a ≥2.2 µF capacitor within 0.5 inch to ground."+      },+      {+        "number": "5",+        "name": "ERROR",+        "type": "output",+        "description": "Open-collector error flag/power-on reset output needing a pull-up resistor, which goes low when the output drops about 5% below nominal (output leakage 0.01 µA typ when high, VOH up to 16V)."+      },+      {+        "number": "6",+        "name": "SHUTDOWN",+        "type": "input",+        "description": "Active-high enable that turns the output off when driven below VL and on when above VH (−0.3V to +16V), needing a slew rate of at least 40 mV/µs; tie to INPUT if unused."+      },+      {+        "number": "7",+        "name": "OUTPUT",+        "type": "power_out",+        "description": "Regulated 3.3V output delivering 200 mA continuous, requiring a minimum 4.7 µF output capacitor with ESR in the stable range."+      },+      {+        "number": "8",+        "name": "SENSE",+        "type": "input",+        "description": "Output voltage sense input, with an absolute maximum rating of −0.3V to +6V."+      }+    ],+    "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 connection diagram text for the SOIC-8/VSSOP-8 package (Figures 3, page 2) is garbled in extract; The datasheet covers LP2987 and LP2988. The LP2988 figure with BYPASS was used. The pin 1 BYPASS fun; Pin-level descriptions are built from the datasheet's absolute maximum ratings, electrical character"+        ],+        "pages_sent": 38,+        "cost_usd": 0.207,+        "at": "2026-10-07T22:41:21"+      },+      "datasheet": {+        "url": "https://www.ti.com/cn/lit/gpn/lp2988",+        "pages": 38,+        "sha256": "79f49a22be2bfe07",+        "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": "lp2988aimm-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": "lp2988aimm-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": "8f54279c60d9fb9cd04b254640463e7e0a86cce3d2c9dddc9a243995c7a83b8e",+        "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]"+  }+}\ No newline at end of file