ON Semiconductor LM431CIZ Adjustable Precision Zener Shunt Regulator

The LM431CIZ from ON Semiconductor is a versatile and precision three-terminal shunt regulator with a guaranteed temperature stability over the entire temperature range of operation. This adjustable zener is designed to provide a precise voltage reference from an up to 37-volt input with two external resistors. The LM431CIZ is widely used in a variety of applications, including adjustable power supplies, switching power supplies, and as a precision current limiter.

Key Features:

• Voltage Range: The device features an adjustable output voltage range from 2.495V to 36V, making it suitable for a wide array of applications.
• Temperature Stability: With a guaranteed stability across the full temperature range, the LM431CIZ ensures reliable performance under varying conditions.
• Low Dynamic Output Impedance: The low dynamic output impedance, combined with a fast turn-on response, provides excellent transient response characteristics.
• Surface Mount and Through-Hole Packages: This component is available in both surface mount and through-hole packages, offering flexibility for different types of circuit board designs.

Applications:

• Adjustable Voltage and Current Power Supplies
• Switching Power Supplies
• Digital Voltmeters
• Op Amp Circuitry
• Portable Battery-Powered Devices

The LM431CIZ is characterized for operation from -40°C to +85°C, catering to a broad spectrum of commercial and industrial environments. Its typical dynamic output impedance of 0.2 ohms, along with the capability to sink current up to 100mA, makes it a robust choice for a stable voltage reference or regulator.

Implementing the LM431CIZ is straightforward, requiring only two external resistors to set the output voltage, thus providing design engineers with a simple and efficient solution for voltage regulation needs. Its reliability and precision are backed by ON Semiconductor's reputation for high-quality electronic components, making the LM431CIZ a trusted choice for your voltage regulation requirements.