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CJ6211A33M

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Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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docs cj6211a33m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers cj6211a33m: viewers · Ray
cj6211a33m-etched.fit.json cj6211a33m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cj6211a33m-etched.glb cj6211a33m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cj6211a33m-etched.step cj6211a33m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cj6211a33m.glb Publish 0.1.0 · Ray
cj6211a33m.kicad_mod Publish 0.1.0 · Ray
cj6211a33m.kicad_sym Publish 0.1.0 · Ray
cj6211a33m.lbr Publish 0.1.0 · Ray
cj6211a33m.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json cj6211a33m: specified limits as data (metadata.characteristics, 30 rows from the datasheet) · Ray
README.md cj6211a33m: specified limits as data (metadata.characteristics, 30 rows from the datasheet) · Ray

CJ6211A33M

Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

CJ6211A33M from Changjing, in a SOT-23-3L. 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 VSS power_in Ground reference for the regulator. All output/input voltages are referenced to this pin.
2 VOUT power_out Regulated output voltage pin. Fixed 3.3V (A33 suffix) at up to 500-700 mA. Requires a 1µF ceramic COUT for stability; a low-ESR ceramic is recommended.
3 VIN power_in Unregulated power input pin. Operating range 1.8V to 6.0V (absolute max 7V). Requires a 1µF ceramic CIN close to the pin.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • CJ6211A33MM
  • CJ6211A33MN
  • CJ6211A33MF

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 (recommended operating supply voltage at VIN) VIN 1.8 6 V 3
Input Voltage (electrical characteristics) VIN 1.8 6 V 4
Input Voltage (absolute maximum) VIN -0.3 7 V 3
Output Voltage (absolute maximum) VOUT -0.3 V 3
Output Current (absolute maximum) IOUT 700 mA 3
Operating free air temperature range (absolute maximum) TA -40 85 °C 3
Operating Junction Temperature Range (absolute maximum) TJ -40 125 °C 3
Storage Temperature (absolute maximum) Tstg -40 125 °C 3
Lead Temperature (soldering) Tsolder 260 °C Soldering, 10 sec 3
ESD rating Human Body Model 2 kV Human Body Model (HBM) 3
ESD rating Machine Model 200 V Machine Model (MM) 3
Power Dissipation PD 0.3 W SOT-23-3L/SOT-23-5L package 3
Operating Junction Temperature Range (recommended) Tj 0 125 °C 3
Operating Free Air Temperature Range (recommended) TA 0 85 °C 3
Supply Current ISS 50 90 μA IOUT=0 4
Standby Current ISTBY 0.1 1 μA CE = VSS 4
Output Current (VOUT≥1.8V row) IOUT 500 700 mA VOUT≥1.8V 4
Dropout Voltage VDO 55 mV VOUT = 3.3V, IOUT = 100mA 4
Load Regulation ∆VOUT 1 mV VIN = VOUT +1V 4
Line Regulation ∆VOUT / (VOUT × ∆VIN) 0.01 0.2 %/V IOUT =10mA, VOUT +1V≤VIN≤6V 4
Output Voltage Temperature Coefficient ∆VOUT / (∆T × VOUT) 50 ppm IOUT =10mA, -40≤T≤+85°C 4
Short Current IShort 100 mA VOUT =VSS 4
CE High Voltage VCE“H” 1.5 V 4
CE Low Voltage VCE“L” 0.3 V 4
Power Supply Rejection Rate at 100Hz PSRR 75 dB IOUT=50mA 4
Power Supply Rejection Rate at 1kHz PSRR 80 dB IOUT=50mA 4
Power Supply Rejection Rate at 10kHz PSRR 70 dB IOUT=50mA 4
Thermal Shutdown TSD 160 °C 4
Thermal Shutdown hysteresis ∆TSD 20 °C 4
COUT Auto-Discharge Resistance RDISCHRG 100 Ω VIN=5V 4

CAD (KiCad official)

  • Symbol: CJ6211A33M
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: cj6211a33m-etched.step / cj6211a33m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj6211a33m.step / cj6211a33m.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (11 pp, sha256 805289572b9842e1, 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