component
MAX809T
Public Made by Adomby adom
UMW Supervisor and Reset ICs, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# MAX809T++**UMW Youtai Semiconductor Co Ltd** · Supervisor and Reset ICs · SOT-23++MAX809T from UMW Youtai Semiconductor Co Ltd, in a SOT-23. Pinout and pin descriptions extracted from the datasheet (via LCSC) by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground pin. Common return for VDD supply and the RESET output. |+| 2 | RESET | output | Active-low reset output. Drives low when VDD is below the reset threshold voltage (3.08 V typ for the T-type), and returns high after at least 140 ms (150 ms min, 240 ms typ) delay once VDD rises above VRST. Maximum output current 20 mA; typically pulled up externally through a resistor. |+| 3 | VDD | power_in | Chip power supply and monitored voltage input. Operating range 1.0 V to 5.5 V; typical IDD 10 µA at 3.0 V. Also the supply sensed against the internal voltage reference for reset generation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW Youtai Semiconductor Co Ltd |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `MAX809TT`+- `MAX809TS`+- `MAX809TR`+- `MAX809TT`+- `MAX809TS`+- `MAX809TR`++## CAD (KiCad official)++- Symbol: `MAX809T`+- 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:** [UMW Youtai Semiconductor Co Ltd datasheet](https://datasheet.lcsc.com/datasheet/pdf/0e8e5426beae08c6f384ad5a32bf2b8b.pdf) (12 pp, sha256 `0fbe59798e7e2e41`, 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/max809t-datasheet.pdf)
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