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CJ9117C33T5

Public Made by Adom

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Changjing DC-DC Converters, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CJ9117C33T5

Changjing · DC-DC Converters · SOT-23-5L

CJ9117C33T5 from Changjing, in a SOT-23-5L. 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 EN input Shutdown pin: driving it High (H) gives normal operation and Low (L) stops the step-up; the EN pin voltage is limited to VSS-0.3 to VSS+8 V.
2 VOUT power_out Output voltage pin, with a VOUT pin voltage limit of VSS-0.3 to VSS+8 V.
3 NC unconnected Not connected (N.C.) on the CJ9117C SOT-23-5L variant.
4 VSS power_in GND pin, the circuit ground reference for the converter.
5 LX passive External inductor connection pin for the built-in switching MOSFET; the LX pin voltage is limited to VSS-0.3 to VSS+8 V and LX pin current to 1000 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23-5L
Category Power Management (PMIC)
Pins 5

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 6 V 4
Operation start voltage VST1 0.9 V IOUT= 1 mA 4
Oscillation start voltage VST2 0.8 V No external parts, voltage applied to VOUT LX pulled up to VOUT via 300Ω resistor 4
Current consumption 2 ISS2 6 10 µA VOUT=VOUT+0.5 V 4
Current consumption during shutdown ISSS 1 µA VEN = 0 V 4
Switching current ISW 100 200 mA VLX= 0.4 V 4
Switching transistor leakage current ISWQ 1 µA No external parts, VLX=VOUT =8 V, VEN = 0 V 4
Line regulation ΔVOUT1 20 50 mV VIN= 0.4×VOUT～0.6×VOUT 4
Load regulation ΔVOUT2 20 50 mV IOUT= 10 µA ~ 50mA 4
Maximum oscillation frequency fOSC 100 KHz VOUT= 0.95×VOUT, measure waveform at LX pin 4
Duty ratio 1 Duty1 70 78 85 % VOUT= 0.95×VOUT, measure waveform at LX pin 4
Shutdown pin input voltage (oscillation) VSH 0.75 V VOUT=0.95×VOUT, judge oscillation at LX pin 4
Shutdown pin input voltage (stop) VSL1 0.3 V VOUT= 0.95×VOUT, judge stop at LX pin 4
Shutdown pin input current (high) ISH -0.1 0.1 µA VEN＝6V 4
Shutdown pin input current (low) ISL -0.1 0.1 µA VEN＝0V 4
VOUT pin voltage VOUT -0.3 8 V Referenced to VSS (printed VSS-0.3 ~ VSS+8) 3
EN pin voltage EN -0.3 8 V Referenced to VSS (printed VSS-0.3 ~ VSS+8) 3
LX pin voltage VLX -0.3 8 V Referenced to VSS (printed VSS-0.3 ~ VSS+8) 3
LX pin current ILX 1000 mA 3
Power dissipation PD 400 mW SOT-23-5L package 3
Operating temperature Topr -40 85 °C 3
Storage temperature Tstg -40 125 °C 3
Soldering temperature Tsolder 260 °C 10 s 3
Duty ratio 2 Duty2 66 % Measure waveform at LX pin with light load 4
Efficiency EFFI 85 % 4

CAD (KiCad official)

  • Symbol: CJ9117C33T5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: cj9117c33t5-etched.step / cj9117c33t5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj9117c33t5.step / cj9117c33t5.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (12 pp, sha256 fbc3a00f08c55c0d, 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