Microchip Technology

MIC5399-SMYMX-TR  

Linear & Switching Voltage Regulators

MIC5399-SMYMX-TR Description

The MIC5399-SMYMX-TR is a dual-output linear voltage regulator designed for applications requiring stable and efficient power supply solutions. Manufactured by Microchip Technology, this regulator features a fixed output voltage configuration, providing two regulated outputs at 2.8V and 3.3V. It is designed to operate with an input voltage range up to 5.5V, making it suitable for a variety of low-voltage applications. Each regulator is capable of delivering up to 300mA of output current, ensuring robust performance for multiple power needs.

The MIC5399-SMYMX-TR is housed in an 8-lead DFN package, which is optimized for surface-mount applications, providing a compact and thermally efficient solution. The regulator is designed with a low quiescent current of 55 µA and a maximum supply current of 130 µA, which helps in minimizing power consumption, especially in low-power and battery-operated devices.

MIC5399-SMYMX-TR Features

• Dual Fixed Output Voltages: The regulator provides two fixed output voltages of 2.8V and 3.3V, catering to different power requirements within a single device.
• Low Dropout Voltage: With a maximum dropout voltage of 0.38V at 300mA, the MIC5399-SMYMX-TR ensures high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: The regulator operates with a low quiescent current of 55 µA, which is crucial for applications where power consumption needs to be minimized.
• Enable Control Feature: The enable pin allows for easy control of the regulator's operation, providing flexibility in power management and system design.
• Protection Features: The regulator includes over-current and over-temperature protection, ensuring reliable operation and safeguarding against potential faults.
• High PSRR: With a power supply rejection ratio (PSRR) of 60dB at 1kHz, the regulator effectively filters out noise from the input supply, resulting in cleaner output voltages.
• Surface Mount Compatibility: The 8-lead DFN package is suitable for surface-mount technology, facilitating easy integration into modern PCB designs.
• Moisture Sensitivity Level 1: The regulator is classified as MSL 1, indicating it is not sensitive to moisture, which simplifies handling and storage requirements.

MIC5399-SMYMX-TR Applications

The MIC5399-SMYMX-TR is ideal for a range of applications where dual voltage outputs and low power consumption are critical. Some specific use cases include:

• Portable Devices: Ideal for battery-operated devices such as smartphones, tablets, and wearables, where low power consumption and efficient power management are essential.
• Embedded Systems: Suitable for embedded systems in industrial and automotive applications, where multiple voltage levels are required for various components.
• IoT Devices: Perfect for Internet of Things (IoT) devices that require stable power supplies and low power consumption to extend battery life.
• Medical Devices: Can be used in medical devices where reliable power supply and low noise are crucial for accurate measurements and device performance.

Conclusion of MIC5399-SMYMX-TR

The MIC5399-SMYMX-TR is a versatile dual-output linear voltage regulator that offers a combination of efficiency, reliability, and flexibility. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications where power efficiency and signal integrity are paramount. The inclusion of enable control and protection features further enhances its usability and robustness. Despite being marked as obsolete, the MIC5399-SMYMX-TR remains a valuable component for designers seeking a reliable power solution in compact and low-power applications.

MIC5399-SMYMX-TR Documents

Download datasheets and manufacturer documentation for MIC5399-SMYMX-TR

PCN Part Number :

Micrel to Microchip PN Changes 7/Oct/2015      

PCN Assembly/Origin :

Assembly Site 22/Nov/2023      

Datasheets :

MIC5396-99      

PCN Packaging :

Packing Changes 10/Oct/2016      

Design Resources :

MIC5399 Development Tool Selector      

PCN Obsolescence/ EOL :

OBS NOTICE 24/Jan/2024      

PCN Design/Specification :

MIC5396/7/8/9 14/Jan/2020       MIC5396/7/8/9 18/Apr/2022      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH