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CJ8633

Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3L

CJ8633 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 GND power_in Ground terminal (labeled VSS in the block diagram and typical application circuit); all voltages are specified with respect to this network ground.
2 IN power_in Input supply pin (VIN) with an operating range of 2.5 V to 45 V and an absolute maximum rating of -0.3 V to 50 V.
3 OUT power_out Regulated output pin (VOUT) with an output voltage range of 2.1 V to 12 V and output current up to 250 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-89-3L
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
Input Voltage VIN 2.5 45 V 3
Output Voltage Range VOUT 2.1 12 V 3
DC Output Accuracy -2 2 % IOUT=10mA 3
DC Output Accuracy -1 1 % 3
Line Regulation ∆VOUT/VOUT×∆VIN 0.01 0.3 %/V IOUT=10mA, VOUT+1V≤VIN≤36V 3
Supply Current ISS 2 10 μA IOUT=0A 3
Input Voltage (absolute maximum) VIN -0.3 50 V 2
Output Voltage (absolute maximum) VOUT -0.3 12 V 2
Power Dissipation PD 0.6 W SOT-89-3L 2
Operating Junction Temperature Range (absolute maximum) Tj -40 125 °C 2
Storage Temperature Tstg -40 125 °C 2
Supply voltage at VIN VIN 2.5 45 V 2
Operating junction temperature range Tj -40 125 °C 2
Operating free air temperature range TA -40 85 °C 2

CAD (KiCad official)

  • Symbol: CJ8633
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: cj8633-etched.step / cj8633-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj8633.step / cj8633.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (6 pp, sha256 65308589cbc47749, retrieved 2026-10-17, 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