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CJ7815B-TGN-ARG

Public Made by Adom

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Changjing Linear Voltage Regulators (LDO), TO-263-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CJ7815B-TGN-ARG

Changjing · Linear Voltage Regulators (LDO) · TO-263-2L

CJ7815B-TGN-ARG from Changjing, in a TO-263-2L. 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 CJ7815B input voltage range is stated as up to 32 V in the recommended operating conditions.
2 GND power_in Regulator ground.
3 OUT power_out Output of the device; the CJ7815B is a fixed 15 V output regulator with output current up to 1 A.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-263-2L
Category Power Management
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
Maximum input voltage range VIN MAX 36 V 8
Maximum output current IOUT MAX 1 A 8
Maximum junction temperature TJ Max 150 °C 8
Storage temperature Tstg -65 150 °C 8
Soldering temperature Tsolder 260 °C 10s 8
Input voltage range (CJ7815B) VIN 32 V CJ7815B 8
Operating junction temperature TJ -40 125 °C 8
Output voltage VOUT 14.7 15 15.3 V TJ = 25°C, ±2% grade 15
Output voltage over temperature range VOUT 14.4 15 15.6 V IOUT = 5mA to 1A, VIN = 17.9 to 30V, TJ = -40 to 125°C, PD ≤ 15W 15
Line regulation ΔVRLINE 35 150 mV VIN = 17.9 to 30V, IOUT = 500mA 15
Load regulation ΔVRLOAD 70 150 mV VIN = 23V, IOUT = 5mA to 1A 15
Quiescent current IQ 3.4 6 mA VIN = 23V, TJ = -40 to 125°C, IOUT = 0mA 15
Quiescent current change ΔIQ 0.1 0.8 mA VIN = 23V, IOUT = 5mA to 1A 15
Quiescent current change ΔIQ 0.3 0.8 mA VIN = 17.9 to 30V, IOUT = 500mA 15
Short circuit current ISC 200 mA VIN = 35V, TA = 25°C 15
Output voltage temperature coefficient ΔVOUT / ΔT 1.2 mV/°C 15
Output voltage temperature coefficient ΔVOUT / (VOUT × ΔT) 80 ppm/°C 15
Output noise voltage VN 10 μV / VO f = 10 to 100k Hz, TA = 25°C 15
Ripple rejection RR 58 dB f = 120Hz, VIN = 18.5 to 28.5V, IOUT = 500mA 15
Dropout voltage VD 2 V IOUT = 1A 15
Output resistance ROUT 10 mΩ f = 1kHz 15
Peak current IPK 2.2 A VIN = 21V 15
Junction-to-ambient thermal resistance TO-263-2L RΘJA 62.3 °C/W TA = 25°C, PCB still air, no extra heat dissipation pads 9
Junction-to-case thermal resistance TO-263-2L RΘJC 5.3 °C/W TA = 25°C, PCB still air, no extra heat dissipation pads 9
Reference maximum power dissipation for continuous operation TO-263-2L PD Ref 1.6 W TA = 25°C, PCB still air, no extra heat dissipation pads 9

CAD (KiCad official)

  • Symbol: CJ7815B-TGN-ARG
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263-2L (KiCad packages3D, STEP)
  • 3D model files: cj7815b-tgn-arg-etched.step / cj7815b-tgn-arg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj7815b-tgn-arg.step / cj7815b-tgn-arg.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (33 pp, sha256 2bf7e0142c58a2c8, retrieved 2026-10-27, 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