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AMS1117-ADJS
Public Made by Adomby adom
UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# AMS1117-ADJS++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3++AMS1117-ADJS from UMW, in a SOT-89-3. 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 | ADJ | input | Adjust pin for the adjustable version. Connects to the R1/R2 feedback divider that sets VOUT = VREF x (1 + R2/R1) + IADJ x R2, where VREF = 1.25V typ and IADJ = 60uA typ (120uA max). On fixed-voltage variants of the AMS1117 this same pin is the GND return; on the -ADJ variant it is the adjust input. |+| 2 | VOUT | power_out | Regulated output. Delivers up to 1A. Requires a stable output capacitor (22uF tantalum recommended) for loop stability. |+| 3 | VIN | power_in | Input supply. Absolute maximum 18V; recommended operating maximum 12V. A 10uF input capacitor is recommended for the typical application. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOT-89-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `AMS1117-ADJSADJS`+- `AMS1117-ADJSADJ`+- `AMS1117-ADJSADJCD`++## CAD (KiCad official)++- Symbol: `AMS1117-ADJS`+- Footprint: `Package_TO_SOT_SMD:SOT-89-3`+- 3D model: SOT-89-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/ams1117-adjs-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-adjs-datasheet.pdf)
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