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CJ6101A39M

Public Made by Adom

by adom

Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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CJ6101A39M

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.

  • CJ6101A39MM
  • CJ6101A39MP
  • CJ6101A39MF

CAD (KiCad official)

  • Symbol: CJ6101A39M
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: cj6101a39m-etched.step / cj6101a39m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj6101a39m.step / cj6101a39m.glb are the bare package body.

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