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CJ78M05
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Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+38@@ -0,0 +1,38 @@+# CJ78M05++**Jiangsu Changjing Electronics Technology Co Ltd** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2L++CJ78M05 from Jiangsu Changjing Electronics Technology Co Ltd, in a TO-252-2L. 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 | IN | power_in | Unregulated positive input voltage. Operates 7V-25V typical, 35V absolute max. A 0.33μF bypass capacitor (Ci) is recommended close to the pin for stability. |+| 2 | GND | power_in | Common ground reference for input and output. Also electrically connected to the tab/heatsink of the TO-252-2L package. |+| 3 | OUT | power_out | Regulated +5V output (4.75V-5.25V over temp). Delivers up to 0.5A peak with short-circuit current limited to ~300mA. A 0.1μF output capacitor (Co) is recommended for transient response. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Jiangsu Changjing Electronics Technology Co Ltd |+| Package | TO-252-2L |+| Category | PMIC |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `CJ78M05`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-2L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Jiangsu Changjing Electronics Technology Co Ltd datasheet](https://datasheet.lcsc.com/datasheet/pdf/7002f9eff4135d0e0a02671d2f23ee46.pdf) (4 pp, sha256 `538caec2c212b748`, 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/cj78m05-datasheet.pdf)
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