The TL431CLPME3 from Texas Instruments is a three-terminal adjustable shunt regulator with specified thermal stability over a full operation range. It acts as a precision programmable reference with an output voltage that can be set to any value between Vref (approximately 2.495 V) and 36 V with two external resistors. This device exhibits a wide operating current range of 1 mA to 100 mA with a typical dynamic impedance of 0.22 Ω.

Featuring a typical temperature coefficient of only 50 ppm/°C and the ability to operate over a temperature range of -40°C to 85°C, the TL431CLPME3 is an ideal choice for temperature-critical applications. Its low output noise, coupled with its fast turn-on response, makes it suitable for various applications, such as adjustable power supplies, switching power supplies, and linear power supplies.

The TL431CLPME3 is offered in a TO-92 package, which is widely used for its compact size and ease of integration into a variety of circuit designs. The TO-92 package also provides effective thermal conduction for enhanced reliability. This device's robust design ensures stability and performance longevity, making it a trusted choice for industry professionals.

Key features of the TL431CLPME3 include:

• Adjustable output voltage from 2.495 V to 36 V
• Operational from -40°C to 85°C
• Low dynamic output impedance: 0.22 Ω typical
• Typical temperature coefficient: 50 ppm/°C
• Sink current capability: 1 mA to 100 mA
• Fast turn-on response

Applications for this voltage reference include:

• Power supplies (adjustable, switching, and linear)
• Battery chargers
• Voltage monitoring
• Automotive systems
• Temperature-compensated circuits

The TL431CLPME3's combination of flexibility, reliability, and precision makes it an essential component for designers looking to enhance the performance of their power supply and regulation systems.