CJ6101A18M 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	Ground reference for the regulator. All output and feedback voltages are referenced to this pin. Connect directly to the system ground plane.
2	VOUT	power_out	Regulated output pin. Delivers up to 300 mA at the fixed 1.8 V output (CJ6101A18M). 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 power input pin, 1.8 V to 8 V operating range (9 V absolute max). Bypass with a 1 µF ceramic capacitor to VSS close to the pin. Dropout is typically 110 mV at 100 mA with VOUT=3.3 V.

Key specifications

Parameter	Value
Manufacturer	Changjing
Package	SOT-23-3L
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

CJ6101A18MM
CJ6101A18MP
CJ6101A18MF

CAD (KiCad official)

Symbol: CJ6101A18M
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).

Datasheet PDF