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AMS1117-1.8V
Public Made by Adomby adom
MSKSEMI 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+45@@ -0,0 +1,45 @@+# AMS1117-1.8V++**Unknown** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++AMS1117-1.8V from Unknown, 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 / common return pin. On the fixed 1.8V version (AMS1117-1.8V), pin 1 (labeled VSS/ADJ in the pinout table) functions as the device ground reference. Connect to system single-point ground. |+| 2 | VOUT | power_out | Regulated 1.8V output pin (1.764V min / 1.836V max, ±2%). Sources up to 1A of load current. Requires a 10uF tantalum output capacitor for stability. |+| 3 | VIN | power_in | Unregulated input supply pin. Operating range up to 15V (typ) / 18V (abs max); must be at least Vout + Vdropout (≥3.1V for the 1.8V fixed variant per electrical characteristics). Recommend 10uF tantalum bypass capacitor to GND. |+| 4 | VOUT | power_out | SOT-223 tab pin, electrically connected to VOUT (pin 2). Acts as the primary heatsinking pad; solder to a copper pour to reduce thermal resistance (θJC ≈ 20°C/W, dropping toward ~30°C/W total with a 5cm×5cm 2-side pour). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Unknown |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `AMS1117-1.8VAMS1117-18`+- `AMS1117-1.8VAMS1117CD-18`+- `AMS1117-1.8VAMS1117-18`++## CAD (KiCad official)++- Symbol: `AMS1117-1.8V`+- 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:** [Unknown datasheet](docs/ams1117-1-8v-datasheet.pdf) (14 pp, sha256 `768f1a5d913d6211`, 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/ams1117-1-8v-datasheet.pdf)
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