Zener Shunt Regulator LM431
The LM431 is an adjustable precision shunt voltage regulator that maintains temperature stability across a wide temperature range. It has 2%, 1%, or 0.5% accuracy and functions as a three-terminal adjustable Zener shunt regulator. This component can be used for voltage regulation applications that need precision control.
Description
Features
- Precision Voltage Regulator with Adjustable Settings:
- Perfect for precision voltage management, this three-terminal adjustable shunt regulator offers 2%, 1%, or 0.5% accuracy.
- Stability of Temperature:
- With a low average temperature coefficient of 50 ppm/°C and temperature compensation for operation across the whole temperature range, it guarantees steady performance.
- Minimal Impedance and Noise:
- Its low dynamic output impedance and low output noise improve performance in delicate applications.
- Small Sizes and Broad Current Range:
- With a maximum current capacity of 100 mA and a minimum operating current of 1 mA, these devices are offered in space-saving SOIC-8, SOT-23, and TO-92 packages.
Application
The LM431 is a flexible and precise component used in several applications:
- Adjustable Voltage or Current Power Supplies:
- It allows for precise control of output voltage or current in both linear and switching power supplies.
- Voltage Monitoring:
- It can be used in systems that require stable and accurate voltage regulation or monitoring.
- Current Source and Sink Circuits:
- This circuit works well in circuits that need to provide or absorb controlled current, ensuring reliable operation.
- Precision Reference Applications:
- It can replace Zener diodes for voltage reference in precision applications, offering better stability and adjustability.
- To reduce noise and improve output accuracy, a 0.1 µF or larger ceramic capacitor is recommended on the input voltage line.
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FAQ
Q: What is the purpose of the LM431?
A: It is a voltage regulator with precise adjustment. It is frequently utilized as a reliable reference voltage in a variety of applications.
Q: Can this chip be used in both types of power supplies?
A: Yes, it works in both linear and switching power supplies, providing adjustable voltage and current regulation.
Q: What is the LM431 chip's operational current range?
A: Depending on the application, it can manage up to 100 mA of operational current with a minimum requirement of 1 mA.
Q: What packages are available for the LM431?
A: It is available in multiple packages, including SOIC-8, SOT-23, and TO-92, allowing for use in space-limited designs.
Q: How do I order products and check for product availability?
A: If you have any inquiries about the product or wish to place an order, kindly click on the "Inquiry" button above, or feel free to contact our dedicated sales team via email. Your message is important to us, and we will promptly assist you upon receiving it. Thank you for considering our products.
Q: How can I find out if a product is available and place an order?
A: If you have any inquiries about the product or wish to place an order, please click on the "Inquiry" button above. Alternatively, you can contact our sales team via email to place your order and obtain information on product availability, pricing, and lead times. We are here to assist you with any questions or requirements you may have.
Q: What shipping options are available for my order?
A: Customers can choose from a range of shipping options, including DHL, UPS, FedEx, and more. We provide flexibility to suit your preferences.
Q: How does the lead time of a product vary?
A: The lead time of a product often varies based on the customer's target price and acceptable delivery period. It's a balance between cost and time to meet individual preferences.
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