Texas Instruments LM431 Adjustable Precision Shunt Voltage Reference 2.495V to
Precision adjustable shunt voltage reference, 2.495V to 36V, SOT-23 package, low noise, green product.
The Texas Instruments LM431 Adjustable Precision Shunt Voltage Reference delivers outstanding temperature stability across its entire operating range, making it a versatile and reliable component for a wide array of electronics. With an adjustable output voltage, this shunt regulator can be set precisely anywhere between 2.495V and 36V, offering flexibility to suit various design requirements.
By simply selecting two external resistors arranged as a voltage divider network, you can program the desired output voltage with ease. The device's sharp turn-on characteristics make it an excellent upgrade for many zener diode applications, providing improved precision and consistency.
This voltage reference is temperature compensated for stable performance over its full temperature range, ensuring dependable operation in varying conditions. Its fast turn-on response and low output noise contribute to clean, efficient performance in sensitive circuits. Additionally, the low dynamic output impedance helps maintain voltage stability under load variations.
The LM431 is a green product, free from antimony and bromine, aligning with modern environmental standards. It comes in a compact SOT-23-3 package with three pins, ideal for space-constrained PCB designs. With an initial accuracy of 0.5% and a temperature coefficient of ±50ppm/°C, this component ensures precise voltage regulation for your projects.
Applications
Typical applications include power management and safety systems, where accurate voltage monitoring and regulation are critical. Whether you're designing power supplies, battery chargers, or voltage monitors, the LM431 provides a dependable solution.
Specifications Overview
- Voltage Reference Type: Shunt – Adjustable
- Reference Voltage: 2.495V to 36V
- Initial Accuracy: 0.5%
- Temperature Coefficient: ±50ppm/°C
- IC Case / Package:
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