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AMS1117-2.85
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Advanced Monolithic Systems 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 @@+# AMS1117-2.85++**Advanced Monolithic Systems AMS1117 2 85** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++AMS1117-2.85 from Advanced Monolithic Systems AMS1117 2 85, 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 / negative supply reference for the fixed-voltage regulator. Serves as the internal Kelvin return for the top of the on-die output divider (R1 connected internally to case), so it can also be used for negative-side load sensing. |+| 2 | VOUT | power_out | Regulated 2.85V output, 1A maximum (2.808V-2.892V typical, tightened tolerance 2.7645V-2.9355V over full temperature). Requires a 22µF solid tantalum output capacitor for frequency compensation and stability. |+| 3 | VIN | power_in | Unregulated DC input, 15V absolute maximum. Must exceed VOUT by at least 1.1V typical / 1.3V max dropout at 0.8A load; recommended nominal 4.35V for the 2.85V variant. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Advanced Monolithic Systems AMS1117 2 85 |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `AMS1117-2.85`+- `AMS1117-2.85AMS1117CD-2.85`+- `AMS1117-2.85AMS1117CS-2.85`++## CAD (KiCad official)++- Symbol: `AMS1117-2.85`+- 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:** [Advanced Monolithic Systems AMS1117 2 85 datasheet](docs/ams1117-2-85-datasheet.pdf) (8 pp, sha256 `189a2651878a87d5`, 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/ams1117-2-85-datasheet.pdf)
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