Microchip Technology

MIC4574BN  

DC Switching Voltage Regulators

MIC4574BN Description

The MIC4574BN is a highly efficient, adjustable-output buck regulator designed for a wide range of power management applications. Manufactured by Microchip Technology, this through-hole mounted device offers a robust solution for converting and regulating power in various electronic systems. The regulator supports an input voltage range from 4V to 24V, making it versatile for different power supply requirements. It delivers a maximum output current of 500mA, ensuring reliable power delivery to connected devices. The MIC4574BN features a switching frequency of 200kHz, which allows for a balance between efficiency and component size. The output voltage is adjustable from 1.23V to 20V, providing flexibility to meet specific application needs. Despite its obsolescence status, the MIC4574BN remains a reliable choice for legacy systems and applications where its unique features are still highly valued.

MIC4574BN Features

• Adjustable Output Voltage: The MIC4574BN offers an adjustable output voltage range from 1.23V to 20V, enabling precise regulation to meet specific application requirements.
• Wide Input Voltage Range: With an input voltage range of 4V to 24V, the regulator is suitable for a variety of power sources, enhancing its versatility.
• High Efficiency: The buck topology ensures high efficiency, making it ideal for applications where power conservation is critical.
• Low Minimum Input Voltage: The regulator can operate with a minimum input voltage of 4V, allowing it to function effectively even with low input power sources.
• Through-Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into existing PCB designs.
• Moisture Sensitivity Level: The MSL rating of 1 (Unlimited) indicates that the device is not moisture-sensitive, ensuring reliability in various environmental conditions.
• REACH Compliance: The MIC4574BN is REACH unaffected, ensuring compliance with environmental and regulatory standards.
• Single Output Configuration: The device features a single positive output configuration, simplifying design and reducing complexity.

MIC4574BN Applications

The MIC4574BN is well-suited for a variety of applications where efficient power conversion and regulation are essential. Its adjustable output voltage and wide input range make it particularly useful in:

• Embedded Systems: Providing stable power to microcontrollers and other embedded components.
• Telecommunications: Supplying regulated power to various modules within telecommunication equipment.
• Industrial Controls: Ensuring reliable power delivery to sensors, actuators, and control systems.
• Consumer Electronics: Powering devices that require precise voltage regulation and efficient power management.
• Automotive Electronics: Supporting power needs in automotive applications where a wide input voltage range is necessary.

Conclusion of MIC4574BN

The MIC4574BN, despite being marked as obsolete, remains a reliable and efficient buck regulator suitable for a wide range of power management applications. Its adjustable output voltage, wide input range, and high efficiency make it an ideal choice for applications requiring precise power regulation. The through-hole mounting and moisture sensitivity level of 1 ensure robustness and reliability in various environments. While newer alternatives may offer enhanced features, the MIC4574BN continues to be a valuable component for legacy systems and applications where its unique attributes are still highly beneficial.

MIC4574BN Documents

Download datasheets and manufacturer documentation for MIC4574BN

Datasheets :

MIC4574      

Design Resources :

MIC4574 Development Tool Selector      

HTML Datasheet :

MIC4574      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH