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SCJA1117B-5.0-A

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

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SCJA1117B-5.0-A

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

SCJA1117B-5.0-A 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 ADJ/GND power_in Ground reference for the fixed-output SCJA1117B-5.0-A; on the ADJ version this pin is the adjust pin, with IAdj about 50uA per the datasheet, and it is not a supply pin.
2 OUTPUT power_out Regulated output; the datasheet requires a minimum 10uF tantalum capacitor at the output for transient response and stability.
3 IN power_in Unregulated input; the absolute maximum input voltage is 20V and the recommended input voltage is 15V, with a 10uF bypass capacitor recommended.

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
Output Voltage (IOUT=10mA, VIN=7.0V) VO 4.9 5 5.1 V IOUT=10mA, VIN=7.0V 3
Output Voltage (10mA≤IOUT≤1A, 6.5V≤VIN≤12V) VO 4.875 5 5.125 V 10mA≤IOUT≤1A, 6.5V≤VIN≤12V 3
Load Regulation LDR 3 12 mV VIN-VOUT=1.5V, 10mA≤IOUT≤1A 3
Line Regulation LNR 0.03 0.2 %/V 3
Quiescent Current Iq 2 5 mA VIN=12V 3
Input Voltage (absolute maximum) Vi 20 V 2
Input Voltage (recommended) Vi 15 V 2
Maximum Junction Temperature Tj -40 150 °C 2
Storage Temperature Tstg -40 150 °C 2
Lead Temperature (Soldering) TL 260 °C Soldering, 10s 2
ESD Rating (Human Body Model) HBM 8 kV Human Body Model 2
Operating Ambient Temperature TA -40 85 °C 2
Operating Junction Temperature Tj -40 125 °C 2
Temperature Coefficient of Bandgap Reference 100 ppm/°C Bandgap reference, per detailed description 4
Thermal Resistance Junction to Ambient RθJA 250 ℃/W As printed in ratings table; see review_required 2
Dropout Voltage VD 1.3 V IOUT=1A 3
Ripple Rejection RR 60 dB f=1kHz, CIN=10μF/25V, COUT=10μF/25V, VIN-VOUT=2V, IOUT=10mA 3
Minimum Load Current IL 2 mA 3
Thermal Shutdown Threshold 170 °C Junction temperature, per detailed description 4

CAD (KiCad official)

  • Symbol: SCJA1117B-5.0-A
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: scja1117b-5-0-a-etched.step / scja1117b-5-0-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); scja1117b-5-0-a.step / scja1117b-5-0-a.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (10 pp, sha256 522d52c927fb2acd, retrieved 2026-10-18, 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