component
LP2998MA
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Texas Instruments Power Management - Specialized, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# LP2998MA++**Texas Instruments** · Power Management - Specialized · SOIC-8++LP2998MA from Texas Instruments, in a SOIC-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 | GND | power_in | Ground reference connection for the device. |+| 2 | SD | input | Active low shutdown input that tri-states VTT while maintaining VREF active; internal pull-up allows connection to AVIN or open circuit for normal operation. |+| 3 | VSENSE | input | Feedback input pin for remote load regulation of VTT; connect to middle of termination bus to improve voltage distribution or directly to VTT if remote regulation not used. |+| 4 | VREF | power_in | Buffered output of internal reference voltage equal to VDDQ/2 with 2.5 kΩ output impedance; 0.1 µF to 0.01 µF ceramic bypass capacitor recommended for improved performance and noise filtering. |+| 5 | VDDQ | power_in | Input supply for creating internal reference voltage through resistor divider; must connect to DDR memory supply rail (2.5 V for SSTL-2, 1.35-1.6 V for DDR3/DDR3L). |+| 6 | AVIN | power_in | Analog input supply for all internal control circuitry; operating range 2.2-5.5 V; must be equal to or greater than PVIN. |+| 7 | PVIN | power_in | Power input exclusively for output stage rail voltage; voltages ≤3.3 V recommended to prevent thermal limit activation; must be equal to or less than AVIN. |+| 8 | VTT | output | Regulated output for DDR termination, capable of sourcing and sinking peak transient currents up to ±3 A with 1.5 A maximum continuous current rating; regulated to VDDQ/2; tri-states during shutdown or thermal shutdown events. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LP2998MA`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `lp2998ma-etched.step` / `lp2998ma-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2998ma.step` / `lp2998ma.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/lp2998-q1) (42 pp, sha256 `8f3b293771e0fafc`, retrieved 2026-10-01, tier: lcsc)+- **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/lp2998ma-datasheet.pdf)
page.jsonadded+155@@ -0,0 +1,155 @@+{+ "slug": "lp2998ma",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Power Management - Specialized, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lp2998ma",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp2998ma.kicad_sym",+ "lp2998ma.kicad_mod",+ "lp2998ma.glb",+ "lp2998ma.step",+ "lp2998ma.lbr",+ "docs/hero.png",+ "docs/lp2998ma-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LP2998MA",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "Power Management - Specialized",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lp2998-q1",+ "parts": {+ "symbol": "lp2998ma.kicad_sym",+ "footprint": "lp2998ma.kicad_mod",+ "model_3d": "lp2998ma-etched.glb",+ "model_3d_plain": "lp2998ma.glb",+ "model_3d_step": "lp2998ma-etched.step",+ "model_3d_step_plain": "lp2998ma.step",+ "lbr": "lp2998ma.lbr"+ },+ "distributor_links": {+ "lcsc": "C2867682"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T07:34:54Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference connection for the device."+ },+ {+ "number": "2",+ "name": "SD",+ "type": "input",+ "description": "Active low shutdown input that tri-states VTT while maintaining VREF active; internal pull-up allows connection to AVIN or open circuit for normal operation."+ },+ {+ "number": "3",+ "name": "VSENSE",+ "type": "input",+ "description": "Feedback input pin for remote load regulation of VTT; connect to middle of termination bus to improve voltage distribution or directly to VTT if remote regulation not used."+ },+ {+ "number": "4",+ "name": "VREF",+ "type": "power_in",+ "description": "Buffered output of internal reference voltage equal to VDDQ/2 with 2.5 kΩ output impedance; 0.1 µF to 0.01 µF ceramic bypass capacitor recommended for improved performance and noise filtering."+ },+ {+ "number": "5",+ "name": "VDDQ",+ "type": "power_in",+ "description": "Input supply for creating internal reference voltage through resistor divider; must connect to DDR memory supply rail (2.5 V for SSTL-2, 1.35-1.6 V for DDR3/DDR3L)."+ },+ {+ "number": "6",+ "name": "AVIN",+ "type": "power_in",+ "description": "Analog input supply for all internal control circuitry; operating range 2.2-5.5 V; must be equal to or greater than PVIN."+ },+ {+ "number": "7",+ "name": "PVIN",+ "type": "power_in",+ "description": "Power input exclusively for output stage rail voltage; voltages ≤3.3 V recommended to prevent thermal limit activation; must be equal to or less than AVIN."+ },+ {+ "number": "8",+ "name": "VTT",+ "type": "output",+ "description": "Regulated output for DDR termination, capable of sourcing and sinking peak transient currents up to ±3 A with 1.5 A maximum continuous current rating; regulated to VDDQ/2; tri-states during shutdown or thermal shutdown events."+ }+ ],+ "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: The datasheet Pin Functions table (page 3) lists an Exposed Pad (EP) as thermal connection to ground"+ ],+ "pages_sent": 10,+ "cost_usd": 0.1228,+ "at": "2026-10-01T07:34:40"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lp2998-q1",+ "pages": 42,+ "sha256": "8f3b293771e0fafc",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}