Microchip Technology

LR645N5-G  

Linear & Switching Voltage Regulators

LR645N5-G Description

The LR645N5-G is a high-performance linear regulator designed for demanding power management applications. Manufactured by Microchip Technology, this regulator is part of the LR645 series and is known for its robustness and reliability. It features a fixed output voltage of 10V and is capable of delivering a steady 3mA of output current. The regulator is designed to operate with an input voltage range up to 450V, making it suitable for high-voltage applications. The LR645N5-G is housed in a through-hole TO220 package, which ensures excellent thermal performance and mechanical stability.

LR645N5-G Features

• Fixed Output Voltage: The LR645N5-G provides a stable 10V output voltage, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 450V, this regulator is ideal for applications requiring high input voltage tolerance.
• Low Quiescent Current: The regulator operates with a low quiescent current of 150 µA, which minimizes power consumption and enhances efficiency.
• High PSRR: The LR645N5-G boasts a power supply rejection ratio (PSRR) of 60dB at 120Hz, effectively filtering out noise and ripple from the input power supply.
• Single Regulator Design: The device contains a single regulator, simplifying design and reducing component count.
• Positive Output Configuration: The regulator offers a positive output configuration, which is commonly required in many electronic systems.
• Compliance and Reliability: The LR645N5-G is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of manufacturing environments.
• Packaging: The regulator is supplied in a tube package, which facilitates easy handling and storage.

LR645N5-G Applications

The LR645N5-G is well-suited for a variety of applications where stable power supply and high input voltage tolerance are critical. Some specific use cases include:

• Industrial Equipment: Ideal for powering control systems and sensors in industrial environments where high input voltage and reliability are essential.
• Telecommunications: Suitable for use in telecom infrastructure, providing stable power to critical components.
• Automotive Electronics: The regulator's high voltage tolerance and low quiescent current make it a good fit for automotive applications where power efficiency and reliability are paramount.
• Medical Devices: The LR645N5-G can be used in medical equipment where stable power supply and low noise are required for accurate operation.
• Power Supply Units: The regulator can be integrated into power supply units to provide a stable and reliable power source for various electronic devices.

Conclusion of LR645N5-G

The LR645N5-G from Microchip Technology is a versatile and reliable linear regulator that offers a unique combination of high input voltage tolerance, low quiescent current, and high PSRR. Its fixed 10V output and 3mA current capability make it suitable for a wide range of applications, from industrial control systems to medical devices. The regulator's compliance with REACH and RoHS3 standards, along with its moisture sensitivity level of 1, ensures it meets the highest environmental and safety standards. The LR645N5-G stands out as a robust and efficient solution for power management needs, providing stable and reliable power in demanding applications.

LR645N5-G Documents

Download datasheets and manufacturer documentation for LR645N5-G

PCN Assembly/Origin :

Mult Devices Assembly 10/Aug/2018      

Datasheets :

LR645      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

Cooling Requirements for Linear Voltage Regulator      

HTML Datasheet :

LR645      

PCN Design/Specification :

Datasheet Update 14/Apr/2015      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH