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CJT1117B-3.3
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Jiangsu Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# CJT1117B-3.3++**Jiangsu** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++CJT1117B-3.3 from Jiangsu, in a SOT-223. Pinout and pin descriptions extracted from the datasheet (via LCSC) 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 regulator. On the CJT1117B-3.3 (fixed version) this pin is the device ground return; on the ADJ variant the same pin functions as the ADJ feedback node. |+| 2 | OUTPUT | power_out | Regulated 3.3V output (3.234V-3.366V over line/load, 10 mA ≤ IOUT ≤ 1 A). Requires a 22 µF tantalum output capacitor for stability per the typical application circuit. |+| 3 | IN | power_in | Unregulated input supply. Recommended operating input ≤15 V, absolute max 20 V; requires ≥1.5 V headroom above VOUT (VIN ≥ 4.8 V for the 3.3 V variant). A 10 µF tantalum input capacitor is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Jiangsu |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `CJT1117B-3.3`++## CAD (KiCad official)++- Symbol: `CJT1117B-3.3`+- 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:** [Jiangsu datasheet](https://datasheet.lcsc.com/datasheet/pdf/0c15768d2fc90dcc94c9943220733588.pdf) (8 pp, sha256 `1aa5012256f1d788`, 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/cjt1117b-3-3-datasheet.pdf)
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