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CJ75L05S

Public Made by Adom

by adom

Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs cj75l05s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
cj75l05s-etched.fit.json cj75l05s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cj75l05s-etched.glb cj75l05s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cj75l05s-etched.step cj75l05s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cj75l05s.glb Publish 0.1.0 · Ray
cj75l05s.kicad_mod Publish 0.1.0 · Ray
cj75l05s.kicad_sym Publish 0.1.0 · Ray
cj75l05s.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
cj75l05s.step Publish 0.1.0 · Ray
package.json Publish 0.2.1 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json Publish 0.2.1 · Ray
README.md cj75l05s: specified limits as data (metadata.characteristics, 14 rows from the datasheet) · Ray

CJ75L05S

Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

CJ75L05S from Changjing, in a SOT-23. 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 OUT power_out Regulated output voltage pin. Provides the fixed 5.0 V output for the CJ75L05S variant, capable of sourcing up to 300 mA. A 1 μF output capacitor is required for stability, transient response, and PSRR.
2 IN power_in Unregulated input supply pin. Operating input voltage range 2.5 V to 36 V (absolute max 40 V). A 1 μF input capacitor is recommended for stability.
3 GND power_in Ground / VSS reference for the regulator. All voltages in the datasheet are referenced to this network ground terminal.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • CJ75L05SS

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
DC Output Accuracy -2 2 % IOUT=1mA 3
Supply Current ISS 2 5 μA IOUT=0A 3
Line Regulation 0.01 0.3 %/V IOUT =10mA, VOUT +1V≤VIN≤36V 3
Input Voltage VIN 2.5 36 V 3
Supply voltage at VIN VIN 2.5 36 V 2
Operating junction temperature range Tj -40 125 °C 2
Operating free air temperature range TA -40 85 °C 2
Input Voltage VIN -0.3 40 V 2
Output Voltage VOUT -0.3 13 V 2
Power Dissipation PD 0.6 W 2
Operating Ambient Temperature Range TA -40 85 °C 2
Storage Temperature Tstg -40 125 °C 2
Lead Temperature (Soldering) Tsolder 260 °C 10 sec 2
Operating Junction Temperature Range Tj -40 125 °C 2

CAD (KiCad official)

  • Symbol: CJ75L05S
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: cj75l05s-etched.step / cj75l05s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj75l05s.step / cj75l05s.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cj75l05s.step 59 KB You want the bare part, or you mark your own boards.
cj75l05s-etched.step 1.5 MB You want the part with CJ75L05S already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 365 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Changjing datasheet (7 pp, sha256 ef71892bf7da9961, 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