SP809EK-L-2-9

@@ -0,0 +1,51 @@+# SP809EK-L-2-9++**MaxLinear** · Supervisor and Reset ICs · SOT-23++SP809EK-L-2-9 from MaxLinear, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground / supply return. |+| 2 | ~RESET | output | Active-low push-pull reset output for the SP809. RESET is asserted low while VCC is below the 2.9V reset threshold and remains low for the 140ms (typ 230ms) reset timeout after VCC recovers above threshold. VOL ≤ 0.3V at 1.2mA sink; VOH ≥ 0.8·VCC at 1.2mA source. |+| 3 | VCC | power_in | Supply voltage input. Operating range 0.9V to 6.0V; absolute maximum 6.5V. Monitored against the internal 2.9V (SP809EK-L-2-9) reset threshold. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | MaxLinear |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `SP809EK-L-2-9/TR`+- `SP809EK-L-2-9SP809EK-L-2-3/TR`+- `SP809EK-L-2-9SP809EK-L-2-6/TR`+- `SP809EK-L-2-9SP809EK-L-3-1/TR`+- `SP809EK-L-2-9SP809EK-L-4-6/TR`+- `SP809EK-L-2-9SP809NEK-L-2-3/TR`+- `SP809EK-L-2-9SP809NEK-L-2-9/TR`+- `SP809EK-L-2-9SP809NEK-L-3-1/TR`+- `SP809EK-L-2-9SP809NEK-L-4-6/TR`+- `SP809EK-L-2-9SP810EK-L-4-4/TR`++## CAD (KiCad official)++- Symbol: `SP809EK-L-2-9`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [MaxLinear datasheet](docs/sp809ek-l-2-9-datasheet.pdf) (8 pp, sha256 `ee58ead697ccce7e`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/sp809ek-l-2-9-datasheet.pdf)

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