Microchip Technology

MIC5209-4.2YS  

Linear & Switching Voltage Regulators

MIC5209-4.2YS Description

The MIC5209-4.2YS is a high-performance linear voltage regulator designed by Microchip Technology. This regulator offers a fixed output voltage of 4.2V and is capable of delivering up to 500mA of output current. It is housed in a compact SOT223-3 package, making it suitable for surface-mount applications. The regulator is designed to operate efficiently with a maximum input voltage of 16V and features a low dropout voltage of 0.6V at 500mA. This ensures that the regulator can maintain its output voltage even when the input voltage is close to the output voltage, enhancing its versatility in various power supply designs.

MIC5209-4.2YS Features

• Fixed Output Voltage: The MIC5209-4.2YS provides a stable 4.2V output voltage, ensuring consistent power supply to connected devices.
• High Efficiency: With a low dropout voltage of 0.6V at 500mA, the regulator maintains high efficiency even under low input-to-output voltage differentials.
• Low Quiescent Current: The regulator consumes only 170 µA of quiescent current, making it ideal for battery-powered applications where power conservation is critical.
• Protection Features: The MIC5209-4.2YS includes over-current, over-temperature, and reverse polarity protection, safeguarding the regulator and connected circuits from damage.
• High PSRR: The regulator boasts a high power supply rejection ratio (PSRR) of 75dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Compliance and Reliability: The regulator is REACH unaffected and ROHS3 compliant, ensuring environmental safety and regulatory compliance. It also has a moisture sensitivity level (MSL) of 3, allowing for a 168-hour exposure to moisture before assembly.

MIC5209-4.2YS Applications

The MIC5209-4.2YS is well-suited for a variety of applications requiring a stable and efficient power supply. Its compact size and high efficiency make it ideal for:

• Battery-Powered Devices: The low quiescent current and high efficiency ensure extended battery life, making it suitable for portable electronics and IoT devices.
• Consumer Electronics: The regulator's ability to handle a wide input voltage range and provide a stable output voltage makes it ideal for powering sensitive electronic components in consumer devices.
• Industrial Applications: The protection features and high PSRR make the regulator robust and reliable for industrial control systems and instrumentation.
• Communication Systems: The low noise and ripple characteristics ensure clean power supply for sensitive communication circuits, enhancing signal integrity.

Conclusion of MIC5209-4.2YS

The MIC5209-4.2YS is a versatile and efficient linear voltage regulator that offers a combination of high performance and reliability. Its fixed 4.2V output, low dropout voltage, and low quiescent current make it an excellent choice for applications where power efficiency and stability are paramount. The inclusion of comprehensive protection features and its compliance with environmental and safety standards further enhance its appeal. Whether used in battery-powered devices, consumer electronics, industrial systems, or communication applications, the MIC5209-4.2YS delivers consistent and reliable performance, making it a standout choice in the market.

MIC5209-4.2YS Documents

Download datasheets and manufacturer documentation for MIC5209-4.2YS

PCN Assembly/Origin :

Wafer Size Update 25/Feb/2016      

Datasheets :

MIC5209      

PCN Packaging :

MBB/Label Chgs 16/Nov/2018      

HTML Datasheet :

MIC5209      

PCN Design/Specification :

MIC5209 01/Feb/2022       MIC5209 DataSheet Update 28/Feb/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH