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LM431CCM3X is listed in the Voltage Reference range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC VREF SHUNT -0.6/+0.4% SOT23-3. Review the specifications below when checking this part for your BOM.
Voltage Reference specifications for LM431CCM3X
- Description：IC VREF SHUNT -0.6/+0.4% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：37 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
Voltage Reference datasheet and documents for LM431CCM3X
Voltage Reference Overview
The LM431CCM3X is an adjustable precision Zener shunt regulator manufactured by Texas Instruments. It operates in the SOT-23 package and provides a reference voltage of 2.5 V with a tolerance of ±1%. The device supports output voltages from 2.5 V to 36 V, features a typical temperature coefficient of 50 ppm/°C, and maintains operation within a cathode current range of 1 mA to 100 mA.
Voltage Reference Feature Summary
- Adjustable output voltage set via external resistors
- Temperature compensated for stability across operating ranges
- Low dynamic output impedance for precise regulation
Voltage Reference Applications
- Linear and switching power supplies
- Voltage monitoring circuits
- Zener diode replacements
Voltage Reference Procurement Notes
Verify the specific suffix 'CCM3X' against the latest TI orderable addendum. Datasheet documentation indicates that certain non-NOPB variants may be classified as Not Recommended for New Designs (NRND). Confirm active status and lead finish specifications directly with the manufacturer or authorized distributors before finalizing procurement plans.
Voltage Reference Selection Notes
Select this component when space-constrained designs require a compact SOT-23 footprint. Ensure the application requires a commercial temperature range of 0°C to 70°C. Verify that the required output voltage falls within the 2.5 V to 36 V range and that the circuit can accommodate the specified minimum and maximum cathode currents.
Voltage Reference Part Context
This part belongs to the LM431 family of adjustable precision shunt regulators. It serves as a direct replacement for standard Zener diodes in applications requiring higher accuracy and lower temperature drift. The device integrates a temperature-compensated bandgap reference and error amplifier to maintain stable regulation under varying load conditions.
Voltage Reference Replacement Considerations
LM431CCM3X/NOPB
Voltage Reference FAQ
What is the minimum cathode current required for regulation?
The device requires a minimum cathode current of 1 mA to maintain proper regulation.
How is the output voltage determined?
The output voltage is programmable between 2.5 V and 36 V using two external resistors configured as a voltage divider network connected to the reference pin.
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