CJ6101A33M

@@ -0,0 +1,45 @@+# CJ6101A33M++**Changjing** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L++CJ6101A33M from Changjing, in a SOT-23-3L. 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 | VSS | power_in | Device ground / reference. All voltages (VIN, VOUT) are referenced to this pin. Tie to system ground with the shortest, lowest-impedance return possible; place the ceramic input and output capacitors' return legs close to this pin. |+| 2 | VOUT | power_out | Regulated output pin. Delivers the fixed 3.3 V (±2% standard, ±1% high-accuracy grade) at up to 300 mA continuous, 600 mA absolute-max. Requires a ≥1 µF ceramic (or tantalum) output capacitor to VSS close to the pin for loop stability and transient response. |+| 3 | VIN | power_in | Unregulated supply input. Operating range 1.8-8 V (absolute max -0.3 to 9 V). For 3.3 V output the dropout is ~110 mV at 100 mA, so VIN must exceed VOUT+Vdrop. Bypass with a ≥1 µF ceramic capacitor to VSS close to the pin; consider a small (~3 Ω) series resistor with X5R MLCC if hot-plugging a live source to suppress start-up voltage transients. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Changjing |+| Package | SOT-23-3L |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `CJ6101A33MM`+- `CJ6101A33MM`+- `CJ6101A33MP`+- `CJ6101A33MF`++## CAD (KiCad official)++- Symbol: `CJ6101A33M`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Changjing datasheet](docs/cj6101a33m-datasheet.pdf) (10 pp, sha256 `281a1425e68c58c2`, 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/cj6101a33m-datasheet.pdf)

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