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AMS1117-1.8
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UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# AMS1117-1.8++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++AMS1117-1.8 from UMW, in a SOT-223. 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 reference for the regulator. On the fixed-output AMS1117-1.8 variant this pin is tied to system ground (on the AMS1117-ADJ variant the same physical pin is the ADJ feedback input). |+| 2 | VOUT | power_out | Regulated 1.8V output (typ 1.800V, min 1.764V, max 1.836V at Iout=10mA, Vin=3.8V, Tj=25C). Rated for up to 1A load current. Requires a 22uF tantalum output capacitor for stability. |+| 3 | VIN | power_in | Unregulated input supply. Absolute maximum 18V, recommended operating 12V max. For 1.8V output, minimum Vin is approximately Vout + dropout (~1.2V @ 1A). A 10uF input bypass capacitor is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `AMS1117-1.8-1.8`+- `AMS1117-1.8CD-1.8`+- `AMS1117-1.8S-1.8`++## CAD (KiCad official)++- Symbol: `AMS1117-1.8`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/ams1117-1-8-datasheet.pdf) (13 pp, sha256 `5ec219092aa45bd9`, 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/ams1117-1-8-datasheet.pdf)
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