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CJU1117B-3.3
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Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# CJU1117B-3.3++**Changjing** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2++CJU1117B-3.3 from Changjing, in a TO-252-2. 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 CJU1117B-3.3 variant. On the ADJ variant this pin is the ADJ feedback input tied to a resistor divider; on fixed-voltage variants it is tied directly to the system ground. |+| 2 | OUTPUT | power_out | Regulated 3.3V output (3.234V-3.366V over line/load). Rated for 1A continuous. Requires a 22 uF tantalum output capacitor for stability per the typical application circuit. |+| 3 | IN | power_in | Unregulated input supply. Recommended operating range 4.8V-12V for the 3.3V variant (Vin absolute max 20V). Requires a 10 uF tantalum input capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Changjing |+| Package | TO-252-2 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `CJU1117B-3.3`++## CAD (KiCad official)++- Symbol: `CJU1117B-3.3`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-2 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Changjing datasheet](docs/cju1117b-3-3-datasheet.pdf) (9 pp, sha256 `9b166ec2c4e32cc8`, 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/cju1117b-3-3-datasheet.pdf)
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