component
CJ6101A39M
Public Unreviewedby Ray
Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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Symbol & Footprint
Schematic Symbol
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markdownCJ6101A39M
Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L
CJ6101A39M 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 / negative supply return. Connect to system ground; all voltages are referenced to this pin. |
| 2 | VOUT | power_out | Regulated positive output, fixed 3.9 V (A39 suffix) at up to 300 mA. Requires a 1 µF (ceramic or tantalum) output capacitor from VOUT to VSS close to the pin for loop stability and transient response. |
| 3 | VIN | power_in | Unregulated positive supply input, 1.8 V to 8 V (absolute max 9 V). Bypass with a 1 µF ceramic capacitor to VSS; a small series resistor (~3 Ω) with an X5R MLCC is recommended to suppress start-up voltage spikes when hot-plugging to a live source. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23-3L |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
CJ6101A39MMCJ6101A39MPCJ6101A39MF
CAD (KiCad official)
- Symbol:
CJ6101A39M - 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 (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).