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PMIC - Voltage Regulators - Linear

The BH31FB1WG-TR is a linear voltage regulator that is part of a family of low dropout (LDO) and voltage regulator integrated circuits (IC) manufactured by Diodes Incorporated. This device is designed to provide a regulated output voltage for systems operating from a single supply. It features an output voltage accuracy of ±2% over temperature and line, and it is capable of supporting a high output current of 1A. It also features an adjustable output voltage from 0.78V to 21V, and it includes various protections like short circuit, thermal shutdown, and under voltage lockouts.

The BH31FB1WG-TR is ideal for use in automotive, battery charging, and consumer electronic applications. This device is particularly well-suited for automotive applications due to its robust design and its ability to withstand extreme environmental conditions. In consumer electronic applications, the device can be used to provide a regulated output voltage for various devices, like portable DVD players and digital cameras, as well as other consumer electronics applications.

The BH31FB1WG-TR works by controlling the output voltage of an unregulated power supply in relation to the reference voltage. It acts as a variable resistor and increases or decreases the current through the device to adjust the output voltage to the specified value. This is done using a voltage divider circuit, in which the reference voltage is fed to one end of the divider and the output voltage is fed to the other end. The voltage divider then adjusts the output voltage to the desired value. The output voltage can be adjusted using an external potentiometer.

In addition, the BH31FB1WG-TR also includes several features to ensure system protection. It includes a short-circuit protection feature, which turns off the output voltage if a short circuit occurs. It also includes a thermal protection feature, which turns off the output voltage if the device\'s temperature exceeds a certain threshold. In addition, the device includes an under voltage lockout feature, which prevents the device from turning on if the input voltage is below the specified value.

Overall, the BH31FB1WG-TR is a versatile linear voltage regulator that can be used in a wide range of applications. It offers an adjustable output voltage range of 0.78V to 21V, with an output voltage accuracy of ±2% over temperature and line. It can also support a high output current of 1A, and it includes several features for system protection. All of these features make it an ideal choice for automotive, battery charging, and consumer electronic applications.

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