component
LM2831ZMF
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+41@@ -0,0 +1,41 @@+# LM2831ZMF++**Texas Instruments** · DC-DC Converters · SOT-23-5++LM2831ZMF from Texas Instruments, in a SOT-23-5. 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 | SW | output | Output switch pin for step-down converter; connect to the inductor and catch diode. |+| 2 | GND | power_in | Signal and power ground pin; place the bottom resistor of the feedback network as close as possible to this pin. |+| 3 | FB | input | Feedback pin; connect to external resistor divider to set output voltage from 0.6 V to 4.5 V. |+| 4 | EN | input | Enable control input; logic high enables operation; do not allow this pin to float or be greater than VIN + 0.3 V. |+| 5 | VIN | power_in | Input supply voltage; operate from 3 V to 5.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LM2831ZMF`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `lm2831zmf-etched.step` / `lm2831zmf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2831zmf.step` / `lm2831zmf.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/lm2831) (39 pp, sha256 `02aa1f2beab12ad0`, 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/lm2831zmf-datasheet.pdf)
page.jsonadded+139@@ -0,0 +1,139 @@+{+ "slug": "lm2831zmf",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm2831zmf",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm2831zmf.kicad_sym",+ "lm2831zmf.kicad_mod",+ "lm2831zmf.glb",+ "lm2831zmf.step",+ "lm2831zmf.lbr",+ "docs/hero.png",+ "docs/lm2831zmf-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM2831ZMF",+ "manufacturer": "Texas Instruments",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm2831",+ "parts": {+ "symbol": "lm2831zmf.kicad_sym",+ "footprint": "lm2831zmf.kicad_mod",+ "model_3d": "lm2831zmf-etched.glb",+ "model_3d_plain": "lm2831zmf.glb",+ "model_3d_step": "lm2831zmf-etched.step",+ "model_3d_step_plain": "lm2831zmf.step",+ "lbr": "lm2831zmf.lbr"+ },+ "distributor_links": {+ "lcsc": "C2070726",+ "digikey": "LM2831ZMFTR-ND",+ "mouser": "926-LM2831ZMF"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T07:47:17Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM2831ZMFTR-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-LM2831ZMF",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SW",+ "type": "output",+ "description": "Output switch pin for step-down converter; connect to the inductor and catch diode."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Signal and power ground pin; place the bottom resistor of the feedback network as close as possible to this pin."+ },+ {+ "number": "3",+ "name": "FB",+ "type": "input",+ "description": "Feedback pin; connect to external resistor divider to set output voltage from 0.6 V to 4.5 V."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Enable control input; logic high enables operation; do not allow this pin to float or be greater than VIN + 0.3 V."+ },+ {+ "number": "5",+ "name": "VIN",+ "type": "power_in",+ "description": "Input supply voltage; operate from 3 V to 5.5 V."+ }+ ],+ "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": [],+ "pages_sent": 9,+ "cost_usd": 0.0616,+ "at": "2026-10-01T07:47:03"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm2831",+ "pages": 39,+ "sha256": "02aa1f2beab12ad0",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}