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In the design of modern electronic devices, reference voltage devices play a crucial role. They not only provide a stable voltage reference for circuits but also serve as the core in various power management, signal processing, and regulation circuits. AZ431LBNTR-E1 is a high-performance reference voltage device manufactured by Diodes Incorporated, renowned for its exceptional stability and precision in the market. This article will delve into the key specifications and characteristics of AZ431LBNTR-E1.

Overview

AZ431LBNTR-E1 is a low-voltage, three-terminal, adjustable reference voltage device with a wide operating range and high thermal stability. The main features of this device include significant turn-on characteristics, a low temperature coefficient, and low output impedance, making it an ideal replacement for Zener diodes. It is widely used in switching power supplies, chargers, motherboards, and other regulatory mechanisms.

Key Specifications

Output Voltage Range: The output voltage of AZ431LBNTR-E1 can be adjusted between 1.24V and 18V through two external resistors. This wide voltage range accommodates various application needs.

Initial Accuracy: The initial accuracy of the device is ±1%, ensuring precise output voltage. This characteristic makes it excel in circuits requiring high-precision voltage references.

Temperature Coefficient: The temperature coefficient of AZ431LBNTR-E1 is ±20ppm/°C, indicating minimal fluctuation in output voltage with temperature changes. This low temperature coefficient ensures stability and reliability under various temperature conditions.

Output Current: The maximum output current of the device is 100mA, sufficient for most applications. Meanwhile, its minimum output current is 0.1mA, ensuring normal operation under low-load conditions.

Operating Temperature Range: The operating temperature range of AZ431LBNTR-E1 is -40°C to +125°C, allowing it to function normally in various harsh environments. This wide operating temperature range significantly expands the device's application scenarios.

Package Type: The device adopts the SOT-23-3 package, featuring a small size, few pins, and ease of installation. This package type not only saves board space but also improves production efficiency and reliability.

RoHS Compliance: AZ431LBNTR-E1 complies with RoHS standards, i.e., lead-free and free from hazardous substances, meeting the environmental requirements of modern electronic products.

Main Characteristics

High Precision: The initial accuracy and low temperature coefficient of AZ431LBNTR-E1 ensure its high precision, making it outstanding in circuits requiring precise voltage references. For example, in precision power management circuits, it can provide a stable voltage reference, ensuring the accuracy and stability of the output voltage.

Wide Operating Range: The wide output voltage range and wide operating temperature range of the device make it adaptable to various application needs. Whether in high or low temperature environments, under high or low load conditions, AZ431LBNTR-E1 can provide stable voltage output.

High Stability: The high thermal stability and low output impedance of AZ431LBNTR-E1 maintain stable voltage output under various conditions. This characteristic is particularly important in switching power supplies, chargers, and other circuits requiring high-stability voltage references.

Ease of Use: The SOT-23-3 package of AZ431LBNTR-E1, with its small size and few pins, makes installation and debugging very simple. Additionally, its external resistor adjustment method allows for flexible and convenient setting of the output voltage.

Environmental Compliance: Complying with RoHS standards, AZ431LBNTR-E1 not only meets the environmental requirements of modern electronic products but also reduces pollution and harm to the environment. This characteristic makes it more widely used and popular in electronic products.

Application Scenarios

The high precision, wide operating range, and high stability of AZ431LBNTR-E1 make it have broad application prospects in various electronic applications. For instance, in graphics cards, computer motherboards, and other computer hardware, it can provide a stable voltage reference to ensure the normal operation and performance stability of the circuit; in voltage adapters, switching power supplies, chargers, and other power management equipment, it can provide precise voltage regulation and stable output, improving device reliability and efficiency.

In summary, AZ431LBNTR-E1 is a high-performance reference voltage device that stands out in the market with its significant characteristics of high precision, wide operating range, and high stability. It not only plays an important role in various electronic applications but also provides strong support for the design and manufacture of modern electronic products.

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