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MIC5259-2.5YML

MIC5259-2.5YML Description

The MIC5259-2.5YML is a high-performance linear voltage regulator designed by Micrel Inc. to provide a stable 2.5V output voltage with a maximum output current of 300mA. This regulator is optimized for low power consumption, featuring a quiescent current of only 150 µA and a supply current of up to 250 µA. It is housed in a surface-mount package, making it suitable for compact and space-constrained designs.

The MIC5259-2.5YML operates with an input voltage range up to 6V and offers a dropout voltage of 0.55V at 300mA, ensuring efficient operation even at low input-to-output voltage differentials. It includes essential protection features such as over-current protection, over-temperature protection, and under-voltage lockout (UVLO) to safeguard the device and connected circuits.

MIC5259-2.5YML Features

• High PSRR Performance: The regulator boasts a power supply rejection ratio (PSRR) of 65dB to 53dB across the frequency range of 10Hz to 10kHz, effectively filtering out noise from the input supply and ensuring clean output voltage.
• Fixed Positive Output Configuration: The regulator provides a fixed positive output voltage of 2.5V, simplifying design and eliminating the need for external voltage-setting components.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator's operation, enabling power-saving modes and facilitating the use of the regulator in systems with varying power states.
• Protection Features: Over-current, over-temperature, and under-voltage lockout (UVLO) protections ensure reliable operation and protect the regulator and downstream circuits from damage.
• Low Dropout Voltage: With a maximum dropout voltage of 0.55V at 300mA, the MIC5259-2.5YML maintains high efficiency even when the input voltage is close to the output voltage.
• Surface Mount Compatibility: The surface-mount package type is ideal for modern, compact PCB designs, enabling high-density layouts.

MIC5259-2.5YML Applications

The MIC5259-2.5YML is well-suited for a variety of applications where low power consumption, high PSRR, and reliable performance are critical. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and low dropout voltage make it ideal for portable and battery-powered applications, such as smartphones, tablets, and wearable devices.
• Noise-Sensitive Circuits: The high PSRR ensures that the regulator can effectively filter out noise from the power supply, making it suitable for sensitive analog circuits, precision sensors, and audio applications.
• Power Management in Embedded Systems: The enable control feature allows for dynamic power management in embedded systems, enabling power-saving modes and efficient power distribution.
• Industrial and Automotive Applications: The robust protection features and surface-mount package make it suitable for industrial and automotive applications where reliability and compact design are essential.

Conclusion of MIC5259-2.5YML

The MIC5259-2.5YML is a versatile and high-performance linear voltage regulator that offers significant advantages over similar models. Its low power consumption, high PSRR, and comprehensive protection features make it an excellent choice for a wide range of applications. Whether used in portable devices, sensitive analog circuits, or embedded systems, the MIC5259-2.5YML provides reliable and efficient power regulation, ensuring stable and clean power supply to connected circuits.