AMS1117-1.5

@@ -0,0 +1,44 @@+# AMS1117-1.5++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++AMS1117-1.5 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 fixed-output AMS1117-1.5. On the adjustable variant (AMS1117-ADJ) this same pin is the ADJ feedback input tied to a resistor divider setting VOUT = VREF*(1+R2/R1) + IADJ*R2, where VREF = 1.25V typ. |+| 2 | VOUT | power_out | Regulated 1.5V output (1.470-1.530V at IOUT=10mA, VIN=3.2V, TJ=25 C). Rated for up to 1A load current with a 1.2V typical dropout. Requires a 22 uF tantalum output capacitor for stability. |+| 3 | VIN | power_in | Unregulated input supply. Absolute maximum 18V; recommended operating up to 12V. VIN must exceed VOUT by at least the dropout voltage (~1.2V at 1A). A ~10uF input capacitor is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `AMS1117-1.5`+- `AMS1117-1.5AMS1117CD-1.5`+- `AMS1117-1.5AMS1117S-1.5`++## CAD (KiCad official)++- Symbol: `AMS1117-1.5`+- 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/ams1117-1-5-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/ams1117-1-5-datasheet.pdf)

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