L78L24ACD-TR

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L78L24ACD-TR Application Field and Working Principle

PMIC or Power Management Integrated Circuits are designed to regulate the power supply within an electronic device or circuit. The L78L24ACD-TR is a three-terminal positive voltage regulator designed by STMicroelectronics. It is specifically designed for use as a positive voltage regulator with an output voltage of 24 Volts and recommended input voltages of up to 40 Volts. It is part of the L78L Series of Positive Voltage Regulators and is categorized as part of the Linear Voltage Regulators.

Features

The L78L24ACD-TR features several features that make it ideal for use in applications that require high voltage output regulation. It has an output voltage accuracy of ±2.0% over temperature and of -2.0% on the low-side over the operating temperature range. It also has an operating temperature range of -40°C to 125°C. Additionally, its quiescent current is rated at 100μA at a rated output of 24 Volts. The output current is rated to be 1.5A with no heat dissipation and 0.5A with heat dissipation.

Application Field

The L78L24ACD-TR is suitable for use in a wide range of applications, including competitive power supplies, DC-DC converters, telecom applications, or battery-operated systems. It can be used in both positive and negative ground applications, offering a high degree of flexibility in its application. Its excellent temperature stability, output voltage accuracy, and quiescent current make it attractive for use in medical and military applications. Additionally, its low leakage current of 0.4μA makes it suitable for use in precision circuits.

Working Principle

The L78L24ACD-TR works by comparing the internal reference voltage to the input voltage. This provides current and voltage regulation, allowing for tight output voltage accuracy. The device regulates the output voltage by modulating the current in the pass element and the output feedback loop. This allows for good load regulation and no load regulation. Additionally, the device has a low output noise and an improved PSRR performance. This makes it attractive for use in high-end audio applications.

Conclusion

The L78L24ACD-TR is a three-terminal positive voltage regulator designed by STMicroelectronics. It has excellent temperature stability, output voltage accuracy, and quiescent current, making it ideal for use in applications that require high voltage output regulation. Additionally, its wide range of operating conditions, low output noise, and improved PSRR performance make it attractive for use in both positive and negative ground applications, making it sure to meet a variety of application requirements.

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