TLV431AILPRE3

PMIC - Voltage Reference

Voltage references, typically referred to as "voltage references" or "voltage regulators", are electronic devices designed to provide a stable current or voltage output at a specific level regardless of the inputs it receives. They can be used for a variety of purposes, from being components of a regulated power supply to being used as sensing elements in medical or industrial applications.

The TLV431AILPRE3 is a three-terminal adjustable voltage-reference voltage used in a variety of applications. It is a shunt regulator that is available in both surface-mount and through-hole packages, and is designed specifically for low-voltage applications where accuracy and stability are critical. The TLV431AILPRE3 is also suitable for battery-powered systems, such as portable and handheld products, as well as for high-reliability power-management solutions.

Advantages of TLV431AILPRE3

One of the main advantages of the TLV431AILPRE3 is that it has an adjustable output voltage, from 2.5 V to 36 V. It includes a high precision voltage reference, enabling up to ±2% accuracy over temperature variations. It is an environmental-friendly, RoHS compliant device with a wide operating temperature range of 0°C to 85°C. It provides a low operating current of only 0.5 mA max and low supply current, which is ideal for battery-powered systems.

Application Field

The TLV431AILPRE3 is a versatile voltage reference that can be used in a variety of applications. It is suitable for a wide range of power supplies, including switched-mode power supplies, DC–DC converters and linear regulators. It is also suitable for step-down and buck boost converters, shunt regulators and isolated LED drivers. It can be used in medical applications, measurement and control systems, industrial systems, and automotive systems.

Working Principle

The TLV431AILPRE3 is based on the “band-gap” voltage reference principle. A band-gap reference is a device which produces a relatively constant voltage regardless of changes in environmental conditions. The band-gap reference produces a constant voltage output by combining two different circuits which operate at different temperatures. These two circuits are a forward-biased base-emitter junction of a bipolar transistor, providing a voltage and a resistor-capacitor pair which provide a temperature coefficient of 0.2 mV/°C. This combination makes the band-gap reference circuit very reliable, as the temperature coefficient of the output voltage is very low.

Conclusion

The TLV431AILPRE3 is a three-terminal adjustable voltage-reference voltage which is suitable for a wide range of applications. It has an adjustable output voltage, from 2.5 V to 36 V, and includes a high precision voltage reference that allows it to maintain ±2% accuracy over temperature variations. It has a low operating current, low supply current and wide operating temperature range, making it ideal for battery-powered systems. The TLV431AILPRE3 is based on the band-gap reference principle, making it a reliable and stable device.