component

CJ7805B-TFN-ARG

Public Made by Adom

by adom

Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)cj7805b-tfn-argfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 16d ago
viewers cj7805b-tfn-arg: viewers · Ray 16d ago
cj7805b-tfn-arg-etched.glb Publish 0.1.0 · Ray 16d ago
cj7805b-tfn-arg-etched.step cj7805b-tfn-arg: factory component page (tier=lcsc) · Ray 16d ago
cj7805b-tfn-arg-hero.glb cj7805b-tfn-arg: hero GLB from the etched model (keeps the MPN mark) · Ray 16d ago
cj7805b-tfn-arg-hero.overlay.json Publish 0.1.0 · Ray 16d ago
cj7805b-tfn-arg.glb Publish 0.1.0 · Ray 16d ago
cj7805b-tfn-arg.kicad_mod Publish 0.1.0 · Ray 16d ago
cj7805b-tfn-arg.kicad_sym Publish 0.1.0 · Ray 16d ago
cj7805b-tfn-arg.lbr Publish 0.1.0 · Ray 16d ago
cj7805b-tfn-arg.step Publish 0.1.0 · Ray 16d ago
package.json Publish 0.1.0 · Ray 16d ago
page.json Set visibility: public · Ray 16d ago
README.md Publish 0.1.0 · Ray 16d ago

CJ7805B-TFN-ARG

Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2L

CJ7805B-TFN-ARG from Changjing, in a TO-252-2L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN power_in Input of the device; the recommended maximum input voltage for the CJ7805B is 25 V (absolute maximum 36 V).
2 GND power_in Regulator ground.
3 OUT power_out Output of the device, providing the regulated 5.0 V output rated up to 1 A at TJ = 25°C.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-252-2L
Category Power Management (PMIC)
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage (TJ = 25°C, ±2% grade) VOUT 4.9 5 5.1 V TJ = 25°C, ±2% grade 9
Output voltage (IOUT = 5mA to 1A, VIN = 7.5 to 20V, TJ = -40 to 125°C, PD ≤ 15W) VOUT 4.8 5 5.2 V IOUT = 5mA to 1A, VIN = 7.5 to 20V, TJ = -40 to 125°C, PD ≤ 15W 9
Line regulation ΔVRLINE 25 50 mV VIN = 7.5 to 20V, IOUT = 500mA 9
Load regulation ΔVRLOAD 20 50 mV VIN = 10V, IOUT = 5mA to 1A 9
Quiescent current IQ 3.2 6 mA VIN = 10V, TJ = -40 to 125°C, IOUT = 0mA 9
Quiescent current change (load) ΔIQ 0.1 0.8 mA VIN = 10V, IOUT = 5mA to 1A 9
Quiescent current change (line) ΔIQ 0.3 0.8 mA VIN = 8 to 25V, IOUT = 500mA 9
Short circuit current ISC 50 mA VIN = 35V, TA = 25°C 9
Input voltage range (CJ7805B) VIN 25 V 7
Operating junction temperature TJ -40 125 °C 7
Maximum input voltage range VIN MAX 36 V Voltages with respect to network ground terminal 7
Maximum output current IOUT MAX 1 A 7
Maximum junction temperature TJ Max 150 °C 7
Storage temperature Tstg -65 150 °C 7
Soldering temperature Tsolder 260 °C 10 s 7
Junction-to-ambient thermal resistance (TO-252-2L) RΘJA 78.9 °C/W TO-252-2L; TA = 25°C, soldered on PCB in still air 8
Junction-to-case thermal resistance (TO-252-2L) RΘJC 5.8 °C/W TO-252-2L 8
Reference maximum power dissipation for continuous operation (TO-252-2L) PD Ref 1.25 W TO-252-2L; TA = 25°C, soldered on PCB in still air 8

CAD (KiCad official)

  • Symbol: CJ7805B-TFN-ARG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2L (KiCad packages3D, STEP)
  • 3D model files: cj7805b-tfn-arg-etched.step / cj7805b-tfn-arg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj7805b-tfn-arg.step / cj7805b-tfn-arg.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (32 pp, sha256 90be5b4b9b1c3663, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF