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cj6101b18m

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Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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README

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CJ6101B18M

Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

CJ6101B18M from Changjing, in a SOT-23-5L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Unregulated positive supply input. Operating range 1.8 V to 8 V (abs-max -0.3 V to +9 V). Bypass with a 1 μF ceramic or tantalum capacitor close to the pin; series 3 Ω recommended with X5R MLCC to damp start-up transients.
2 VSS power_in Device ground / signal return. All voltages in the datasheet are referenced to this pin. Tie directly to the ground plane and to the negative terminal of CIN and COUT.
3 CE input Chip Enable, active-high on the 'B'-designator variant (VCE_H ≥ 1.5 V, VCE_L ≤ 0.3 V). 'B' option integrates a CE pull-down resistor so the pin defaults to disabled if left floating; drive high to enable the regulator. Standby current with CE=VSS is 0.1 μA typ.
4 NC unconnected No internal connection. Leave floating or tie to VSS for best PCB stability; do not use as a routing via.
5 VOUT power_out Regulated output, factory-trimmed to 1.8 V on this MPN (accuracy ±2 % / ±1 % typ.). Delivers up to 300 mA continuous; current limit 550-850 mA (typ 700 mA). Requires a ≥1 μF output capacitor to VSS for loop stability; ceramic COUT improves transient response.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

  • CJ6101B18MM
  • CJ6101B18MP
  • CJ6101B18MF

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 -0.3 9 V 2
Output Current IOUT 600 mA 2
Operating Ambient Temperature Range TA -40 85 °C 2
Storage Temperature Tstg -40 125 °C 2
Operating Junction Temperature Range Tj -40 125 °C 2
Output Voltage VOUT -0.3 V 2
Supply voltage at VIN VIN 1.8 8 V 3
Operating junction temperature range Tj -40 125 °C 3
Operating free air temperature range TA -40 85 °C 3
Input Voltage VIN 1.8 8 V 3
Output Voltage Range VOUT 1.2 5 V 3
DC Output Accuracy (±2% grade row) -2 2 % IOUT=1mA 3
DC Output Accuracy (±1% grade row) -1 1 % IOUT=1mA 3
Supply Current ISS 0.6 0.7 1.3 μA IOUT=0, 1.2V≤VOUT≤3.3V 3
Line Regulation 0.05 0.3 %/V IOUT=10mA, VOUT+1V≤VIN≤8V 3
Output Current Limit ILIM 550 700 850 mA VOUT=0.5 x VOUT(Normal), VIN=5V 3
CE High Voltage VCE“H” 1.5 V 3
CE Low Voltage VCE“L” 0.3 V 3

CAD (KiCad official)

  • Symbol: CJ6101B18M
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: cj6101b18m-etched.step / cj6101b18m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj6101b18m.step / cj6101b18m.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (None pp, sha256 c34ed0d4586f8401, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

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Datasheet

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