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MIC5321-MGYMT

MIC5321-MGYMT Description

The MIC5321-MGYMT is a high-performance dual linear regulator designed by Micrel Inc., offering two independent fixed-output voltage regulators in a compact surface-mount package. This device is ideal for applications requiring reliable power management with minimal dropout voltage and low quiescent current. The MIC5321-MGYMT features two regulators, each capable of delivering up to 150mA of output current with a maximum dropout voltage of only 0.1V at 150mA. The regulators are designed to operate with an input voltage range up to 5.5V, making them suitable for a wide range of power supply applications.

MIC5321-MGYMT Features

• Dual Fixed-Output Regulators: The MIC5321-MGYMT includes two independent regulators with fixed output voltages of 1.8V and 2.8V, providing flexibility for multiple power supply needs.
• Low Dropout Voltage: Each regulator has a maximum dropout voltage of 0.1V at 150mA, ensuring high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: The device features a low quiescent current of 190 µA, making it suitable for battery-powered applications where power consumption is critical.
• High PSRR: The power supply rejection ratio (PSRR) ranges from 75dB at 1kHz to 45dB at 20kHz, providing excellent noise filtering and stable output voltage.
• Enable Control: The enable feature allows for dynamic control of the regulators, enabling power savings and quick turn-on/turn-off capabilities.
• Protection Features: The MIC5321-MGYMT includes over-current and over-temperature protection, ensuring reliable operation and safeguarding against potential faults.
• Moisture Sensitivity Level: The device is rated at MSL 3 (168 hours), making it suitable for a variety of manufacturing environments.
• Mounting Type: Surface-mount technology (SMT) allows for easy integration into compact and high-density PCB designs.

MIC5321-MGYMT Applications

The MIC5321-MGYMT is well-suited for a variety of applications where dual power supply rails are required. Its low dropout voltage and high PSRR make it ideal for sensitive analog circuits, such as:

• Consumer Electronics: Portable devices, smartphones, and tablets benefit from the low power consumption and high efficiency of the MIC5321-MGYMT.
• Industrial Equipment: Powering sensors and microcontrollers in industrial settings where reliability and low noise are critical.
• Telecommunications: Base stations and networking equipment require stable and efficient power supplies, which the MIC5321-MGYMT can provide.
• Medical Devices: Portable medical equipment, such as glucose meters and portable monitors, can benefit from the low quiescent current and high PSRR of this regulator.

Conclusion of MIC5321-MGYMT

The MIC5321-MGYMT from Micrel Inc. stands out as a high-performance dual linear regulator, offering significant advantages over similar models. Its low dropout voltage, high PSRR, and low quiescent current make it an excellent choice for applications requiring efficient and stable power management. The enable control and protection features further enhance its versatility and reliability. Whether used in consumer electronics, industrial equipment, telecommunications, or medical devices, the MIC5321-MGYMT provides a robust and efficient power solution, ensuring optimal performance and reliability in a compact form factor.