The TLV431 from Texas Instruments is a precision low-voltage shunt regulator that is designed to be an excellent choice for a variety of applications requiring voltage regulation. This device is a three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 1.24 volts) and 6 volts with two external resistors.

Key Features

• Adjustable Output Voltage: This device offers a wide range of voltages adjustable from 1.24V to 6V, allowing for flexibility in various applications.
• Low Operational Cathode Current: The TLV431 features a low operational current ranging from 1µA to 100µA, which enhances its efficiency and makes it suitable for battery-operated devices.
• Low Dynamic Output Impedance: With a typical output impedance of 0.22 ohms, the TLV431 provides stable reverse voltage regulation.
• Fast Turn-on Response: The device is designed for a quick response, making it ideal for applications requiring fast turn-on times.
• Temperature-Compensated Voltage Reference: Temperature compensation ensures stable operation over a wide range of temperatures.

Applications

The TLV431's versatility makes it suitable for a broad spectrum of applications, including:

• Adjustable Voltage and Current References
• Power Supplies
• Notebook/Desktop Computers
• Consumer Electronics
• Portable/Battery-Powered Equipment
• Industrial Controllers
• Automotive Systems

Package Options and Reliability

Available in multiple package options including the small-outline transistor (SOT-23), the TO-92, and the small-outline integrated circuit (SOIC), the TLV431 offers flexibility for various design layouts. Moreover, the device's reliability is assured by Texas Instruments' rigorous quality control and testing procedures, ensuring performance across its intended applications.