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MIC5319-3.3BD5

MIC5319-3.3BD5 Description

The MIC5319-3.3BD5 is a fixed output linear voltage regulator designed by Microchip Technology. This regulator offers a stable 3.3V output voltage with a maximum input voltage of 5.5V and a maximum output current of 500mA. It features a low dropout voltage of 0.4V at 500mA, ensuring efficient power conversion even under low input-to-output voltage differentials. The regulator is housed in a TSOT23-5 package, making it suitable for surface-mount applications and providing a compact solution for space-constrained designs.

MIC5319-3.3BD5 Features

• Fixed Output Voltage: The regulator provides a stable 3.3V output, ideal for applications requiring a precise and consistent voltage supply.
• Low Dropout Voltage: With a maximum dropout voltage of 0.4V at 500mA, the MIC5319-3.3BD5 ensures high efficiency, especially in low-input voltage scenarios.
• Low Quiescent Current: regulator The operates with a quiescent current of only 150 µA, making it suitable for low-power applications and battery-operated devices.
• High PSRR: The regulator offers a high power supply rejection ratio (PSRR) of 70dB at 1kHz and 60dB at 10kHz, effectively filtering out noise from the input supply and ensuring clean output voltage.
• Enable Control Feature: The regulator includes an enable pin, allowing for dynamic control of the output voltage, which can be useful in power management and sequencing applications.
• Protection Features: The MIC5319-3.3BD5 incorporates over-current and over-temperature protection, ensuring reliable operation and safeguarding against potential damage.
• Moisture Sensitivity Level: The regulator has a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to standard manufacturing environments.

MIC5319-3.3BD5 Applications

The MIC5319-3.3BD5 is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other low-power components in embedded systems.
• Consumer Electronics: Suitable for portable devices such as smartphones, tablets, and wearables, where low power consumption and compact design are critical.
• Industrial Applications: Can be used in industrial control systems, PLCs, and other applications requiring and reliable efficient power regulation.
• Communication Devices: Provides stable power for communication modules, routers, and other networking equipment.

Conclusion of MIC5319-3.3BD5

The MIC5319-3.3BD5 is a robust and efficient linear voltage regulator that offers a stable 3.3V output with low dropout voltage and low quiescent current. Its high PSRR and protection features make it a reliable choice for various applications, particularly in low-power and space-constrained designs. While the product is marked as obsolete, it remains a viable option for legacy systems and applications where its unique features and performance benefits are still relevant.