LDL1117S50R

@@ -0,0 +1,43 @@+# LDL1117S50R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++LDL1117S50R from STMicroelectronics, 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 | Device ground reference. Common return for the input and output regulation loop; must be tied to the system ground plane. |+| 2 | VOUT | power_out | Regulated 5.0 V fixed output. Supplies up to 1.2 A of continuous output current with a typical 350 mV dropout at full load. Requires a 4.7 µF ceramic output capacitor for stability. The SOT-223 tab is internally connected to VOUT. |+| 3 | VIN | power_in | Unregulated input supply, 2.5 V to 18 V operating (20 V absolute maximum). Requires a 1 µF ceramic input capacitor placed close to the pin. |+| 4 | TAB | power_out | SOT-223 thermal tab, internally connected to VOUT. Solder to a copper pour tied to the VOUT net to provide thermal dissipation and reduce junction-to-ambient thermal resistance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `LDL1117S50RS50R`++## CAD (KiCad official)++- Symbol: `LDL1117S50R`+- 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:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/ldl1117s50r.pdf) (23 pp, sha256 `7f5923a949754b88`, retrieved 2026-08-17, tier: manufacturer)+- **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/ldl1117s50r-datasheet.pdf)

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