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MIC5246-3.3BM5

MIC5246-3.3BM5 Description

The MIC5246-3.3BM5 is a high-performance, low-dropout linear regulator (LDO) designed by Micrel Inc., a leading manufacturer in the power management sector. This device is specifically engineered to provide a fixed output voltage of 3.3V, making it ideal for applications requiring stable and precise power supply. The regulator is capable of delivering up to 150mA of output current while maintaining a maximum dropout voltage of only 0.25V at full load, ensuring efficient power conversion even at low input-to-output voltage differentials.

The MIC5246-3.3BM5 is designed with a maximum input voltage of 6V, providing flexibility in input power sources. Its quiescent current is a mere 150 µA, contributing to its high efficiency and making it suitable for battery-powered applications where low power consumption is critical. The regulator also features a Power Supply Rejection Ratio (PSRR) of 50dB at 120Hz, effectively filtering out noise from the input supply and ensuring clean output voltage.

MIC5246-3.3BM5 Features

• Output Type: Fixed 3.3V output voltage, ensuring consistent power supply.
• Input Voltage Range: Up to 6V, providing compatibility with a wide range of input sources.
• Output Current: Capable of delivering up to 150mA, suitable for a variety of low to medium power applications.
• Low Dropout Voltage: Maximum of 0.25V at 150mA, enhancing efficiency and performance in low-voltage applications.
• Quiescent Current: Low 150 µA, ideal for battery-operated devices and energy-efficient systems.
• PSRR: 50dB at 120Hz, ensuring high-quality output voltage with minimal noise.
• Control Features: Includes an enable function, allowing for dynamic control of the regulator’s operation.
• Protection Features: Over-current protection, over-temperature protection, and under-voltage lockout (UVLO) ensure robustness and reliability in various operating conditions.
• Mounting Type: Surface mount, suitable for compact and space-constrained designs.
• Package: Bulk packaging, facilitating easy integration into production lines.

MIC5246-3.3BM5 Applications

The MIC5246-3.3BM5 is well-suited for a range of applications that demand stable and efficient power regulation. Its low dropout voltage and high PSRR make it ideal for use in sensitive electronic systems where power quality is paramount. Some specific applications include:

• Battery-Powered Devices: The low quiescent current and high efficiency make it suitable for portable electronics, such as smartphones, tablets, and wearable devices.
• Embedded Systems: Ideal for microcontroller-based systems where a stable 3.3V supply is required for reliable operation.
• Communication Equipment: Provides clean power for sensitive RF and analog circuits, ensuring minimal interference and high performance.
• Industrial Controls: Suitable for industrial applications where robustness and reliability are critical, such as PLCs and automation systems.

Conclusion of MIC5246-3.3BM5

The MIC5246-3.3BM5 from Micrel Inc. stands out as a reliable and efficient solution for power management needs. Its combination of low dropout voltage, high PSRR, and low quiescent current positions it as an excellent choice for applications requiring high efficiency and stable power supply. The inclusion of advanced protection features further enhances its reliability, making it a robust solution for a wide range of electronic systems. Whether in portable devices, embedded systems, or industrial controls, the MIC5246-3.3BM5 delivers consistent performance and value, making it a preferred choice for designers and engineers in the electronics industry.