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LM431BCM3X/NOPB is listed in the Voltage Reference range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC VREF SHUNT ADJ 1% SOT23-3. Review the specifications below when checking this part for your BOM.
Voltage Reference specifications for LM431BCM3X/NOPB
- Description：IC VREF SHUNT ADJ 1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- 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 LM431BCM3X/NOPB
Voltage Reference Overview
The LM431BCM3X/NOPB is an adjustable precision Zener shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 37 V and features an initial accuracy of 1%. The device has a maximum shunt current of 100 mA and a temperature coefficient of 97 ppm/°C. It supports a maximum input voltage of 37 V and functions between -40°C and +85°C. Packaged in a SOT-23-3 surface-mount format, it is RoHS compliant.
Voltage Reference Feature Summary
- Provides adjustable reference voltage functionality with high precision
- Operates as a shunt regulator for stable voltage control
- Designed for surface-mount integration in compact circuits
Voltage Reference Applications
- Voltage regulation in power supply circuits
- Reference voltage generation for analog-to-digital converters
- Over-voltage protection circuits
Voltage Reference Procurement Notes
Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status against the latest manufacturer datasheet. Ensure the SOT-23-3 package dimensions match your PCB footprint requirements. Confirm that the 1% initial accuracy meets your circuit tolerance specifications before finalizing procurement orders.
Voltage Reference Selection Notes
Select this component when a low-cost, adjustable shunt regulator is required in a small surface-mount package. It is suitable for applications needing up to 100 mA shunt current. Consider the 97 ppm/°C temperature coefficient for thermal stability needs. Compare with LM431CIM3X/NOPB if higher 0.5% accuracy is necessary for your design.
Voltage Reference Part Context
This part belongs to the LM431 series of adjustable precision Zener shunt regulators from Texas Instruments. It serves as a direct replacement for legacy National Semiconductor versions. The device is widely used in industrial and consumer electronics for voltage referencing and regulation tasks requiring reliable performance in a compact form factor.
Voltage Reference Replacement Considerations
LM431CIM3X/NOPB offers 0.5% accuracy instead of 1%. LM431AIZ/NOPB provides through-hole TO-226-3 packaging. Verify pinout compatibility and thermal characteristics when substituting.
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