L7824ABD2T-TR Integrated Circuits (ICs)

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Introduction

L7824ABD2T-TR is a low dropout voltage regulator integrated circuit manufactured by STMicroelectronics. It is an ultra low-dropout linear regulator (LDOs) designed to provide highly accurate voltage regulation and current limitation in the range of 0.8V & 24V. The dropout voltage of this device is less than 0.45V, meaning that it can provide stable output voltage even at lower input voltages. It also has a maximum operating current at 3A, which makes L7824ABD2T-TR suitable for a wide range of applications from consumer, industrial, and automotive sector.

Application field

L7824ABD2T-TR can be used for a variety of applications that require a stable and low power supply, such as Automotive and Industrial applications. It is suitable for voltage regulation in applications such as Battery-Powered Equipment, Automotive Motor Controllers, Industrial AC-DC and DC-DC Converters, and Embedded Computing Platforms. It is also suitable for adding and/or replacing a voltage regulator in an existing printed circuit board, such as in automotive applications.

In addition, the low dropout voltage and low quiescent current makes L7824ABD2T-TR an ideal choice for portable applications, such as small form factor electronics, laptop computers, and USB-powered devices.

Working Principle

The working principle of L7824ABD2T-TR is based on the operation of a linear voltage regulator. It has a series of resistors which act as voltage divider to regulate the output voltage in the event of a drop in input voltage. This voltage divider results in a precise output voltage which is maintained along with the load current.

When the load current is increased, the output voltage is regulated by adjusting the transistor bias current. This provides line and load regulation with better than 4mV/V. The load current is also limited by current sense circuit, which limits the output current when it surpasses the maximum operating current of 3A.

L7824ABD2T-TR also features a thermal protection circuit that limits the total power dissipation in order to prevent overheating. It turns off the output in order to protect the device and the application in the event of excessive power dissipation.

Conclusion

L7824ABD2T-TR is an ideal low dropout linear regulator designed for a wide variety of applications. Its low dropout voltage and current limit makes it suitable for applications that require low power and high accuracy. The built-in voltage and current protection circuits also ensure a safe operation and protect the circuit from excessive power dissipation. All these features make L7824ABD2T-TR a reliable choice for voltage regulation applications.

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