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AMS1117A-3.3V
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HX hengjiaxing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# AMS1117A-3.3V++**HX hengjiaxing AMS1117A 3 3V** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3++AMS1117A-3.3V from HX hengjiaxing AMS1117A 3 3V, in a SOT-223-3. 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 | GND | power_in | Ground / common return for the regulator. On the fixed-output AMS1117A-3.3V this pin is the device ground reference (labeled 'Vss/ADJ' on the package; the ADJ function applies only to the -ADJ variant). |+| 2 | VOUT | power_out | Regulated 3.3V output (3.234-3.366V, ±2%) capable of sourcing up to 1A continuous (1.4A max). Requires a 10µF output capacitor for stability. |+| 3 | VIN | power_in | Unregulated input supply. Recommended operating input up to 15V (absolute max 18V); requires ≥4.8V to maintain 3.3V regulation at load (dropout 1.3V typ at 1A). Bypass with a 10µF tantalum capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HX hengjiaxing AMS1117A 3 3V |+| Package | SOT-223-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `AMS1117A-3.3VL`+- `AMS1117A-3.3V33L`+- `AMS1117A-3.3VO`+- `AMS1117A-3.3V33O`++## CAD (KiCad official)++- Symbol: `AMS1117A-3.3V`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HX hengjiaxing AMS1117A 3 3V datasheet](docs/ams1117a-3-3v-datasheet.pdf) (9 pp, sha256 `cd3d5a1ea037be22`, 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/ams1117a-3-3v-datasheet.pdf)
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