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CJ78L08C-P3T-ARG

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Changjing Linear Voltage Regulators (LDO), SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CJ78L08C-P3T-ARG

Changjing · Linear Voltage Regulators (LDO) · SOT-89-3L

CJ78L08C-P3T-ARG from Changjing, in a SOT-89-3L. 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 OUT output Output of the regulator, a fixed 8.0V for the CJ78L08C with output current up to 100mA.
2 GND power_in Regulator ground.
3 IN input Input to the device; the CJ78L08C input voltage is rated up to 30V (maximum 36V absolute).

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-89-3L
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
Output voltage (±3% grade) VOUT 7.76 8 8.24 V TJ = 25°C; ±3% grade 10
Output voltage VOUT 7.6 8 8.4 V VIN = 10.5 to 23V, TJ = -40 to 125°C, IOUT = 1 to 100mA, PD ≤ 0.75W 10
Output current IOUT 100 mA TJ = 25°C 10
Quiescent current IQ 3 5.5 mA IOUT = 0mA 10
Quiescent current change ΔIQ 1.5 mA VIN = 11 to 23V, TJ = -40 to 125°C 10
Quiescent current change ΔIQ 0.1 mA IOUT = 1 to 40mA, TJ = -40 to 125°C 10
Dropout voltage VDO 1.7 2 V IOUT = 40mA 10
Dropout voltage VDO 1.8 2.3 V IOUT = 100mA 10
Line regulation ΔVLINE 8 150 mV VIN = 10.5 to 23V 10
Load regulation ΔVLOAD 10 70 mV IOUT = 1 to 100mA 10
Ripple rejection RR 44 53 dB VIN = 13 to 23V, f = 120Hz 10
Input voltage VIN 30 V 10
Maximum input voltage VIN MAX 36 V 6
Maximum junction temperature TJ Max 150 °C 6
Storage temperature Tstg -65 150 °C 6
Soldering temperature Tsolder 260 °C 10 s 6
Input voltage range (CJ78L08C) VIN 30 V CJ78L08C 6
Operating junction temperature TJ -40 125 °C 6
Junction-to-ambient thermal resistance (SOT-89-3L) RΘJA 121.6 °C/W SOT-89-3L; still air, TA = 25°C, 1 in² FR-4 board with 2 oz copper 7
Junction-to-case thermal resistance (SOT-89-3L) RΘJC 29.4 °C/W SOT-89-3L 7
Reference maximum power dissipation for continuous operation (SOT-89-3L) PD Ref 0.82 W SOT-89-3L; still air, TA = 25°C, 1 in² FR-4 board with 2 oz copper 7

CAD (KiCad official)

  • Symbol: CJ78L08C-P3T-ARG
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: cj78l08c-p3t-arg-etched.step / cj78l08c-p3t-arg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj78l08c-p3t-arg.step / cj78l08c-p3t-arg.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (30 pp, sha256 ccb056fb5d1abe3f, retrieved 2026-11-05, 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