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LDL1117S25R
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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# LDL1117S25R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4++LDL1117S25R from STMicroelectronics, in a SOT-223-4. 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 regulator. Common return for both input and output currents. |+| 2 | VOUT | power_out | Regulated fixed output voltage (2.5 V for LDL1117S25R). Delivers up to 1.2 A; requires a 4.7 µF output capacitor for stability. Internally tied to the SOT-223 tab. |+| 3 | VIN | power_in | Unregulated input supply, 2.5 V to 18 V (20 V AMR). Requires a 1 µF input capacitor close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-223-4 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `LDL1117S25RS25R`++## CAD (KiCad official)++- Symbol: `LDL1117S25R`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](docs/ldl1117s25r-datasheet.pdf) (23 pp, sha256 `0533b5ea67d7b205`, 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/ldl1117s25r-datasheet.pdf)
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