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IR3843AMTR1PBF

IR3843AMTR1PBF Description

The IR3843AMTR1PBF is a high-performance DC switching voltage regulator from Infineon Technologies, part of the SupIRBuck® series. This regulator is designed to deliver a maximum output current of 3A with an adjustable output voltage ranging from 0.7V to 18.9V. It operates over a wide input voltage range of 1.5V to 21V, making it suitable for various power supply applications. The device features a switching frequency that can be adjusted between 225kHz and 1.32MHz, allowing for optimization of efficiency and performance based on specific application requirements.

The regulator employs a buck topology and includes a synchronous rectifier, which enhances efficiency and reduces power loss. It is housed in a PQFN (5x6) package, which is ideal for surface-mount applications and offers excellent thermal performance. The IR3843AMTR1PBF is available in a tape and reel package, facilitating automated assembly processes. Despite its obsolescence status, this regulator remains a reliable choice for applications requiring high efficiency and compact design.

IR3843AMTR1PBF Features

• Adjustable Output Voltage: The regulator offers an adjustable output voltage range from 0.7V to 18.9V, providing flexibility for a wide range of applications.
• Wide Input Voltage Range: With an input voltage range of 1.5V to 21V, the IR3843AMTR1PBF can accommodate various power sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 3A, this regulator is suitable for applications requiring high current output.
• Synchronous Rectification: The inclusion of a synchronous rectifier improves efficiency and reduces power loss, making it ideal for high-power applications.
• Adjustable Switching Frequency: The switching frequency can be adjusted between 225kHz and 1.32MHz, allowing for optimization of efficiency and performance.
• Compact PQFN Package: The PQFN (5x6) package offers excellent thermal performance and is suitable for surface-mount applications, saving space on the PCB.
• REACH Compliance: The regulator is REACH unaffected, ensuring compliance with environmental regulations.
• Moisture Sensitivity Level: With an MSL of 2 (1 Year), the device is suitable for use in environments with varying humidity levels.

IR3843AMTR1PBF Applications

The IR3843AMTR1PBF is well-suited for a variety of applications where high efficiency and compact design are critical. Some specific use cases include:

• Telecommunications Equipment: Ideal for powering various components in telecom systems, where high efficiency and reliability are paramount.
• Networking Devices: Suitable for networking equipment such as routers and switches, providing stable power supply with minimal power loss.
• Consumer Electronics: Can be used in consumer electronics like gaming consoles and high-end audio systems, ensuring efficient power delivery.
• Industrial Control Systems: Provides reliable power for industrial control systems, where high current and adjustable voltage are required.
• Automotive Electronics: Suitable for automotive applications, where the wide input voltage range and high efficiency are beneficial.

Conclusion of IR3843AMTR1PBF

The IR3843AMTR1PBF from Infineon Technologies is a versatile and efficient DC switching voltage regulator, offering a wide range of features and benefits. Its adjustable output voltage, wide input voltage range, and high output current make it suitable for a variety of applications. The inclusion of a synchronous rectifier and adjustable switching frequency further enhances its performance and efficiency. Despite being marked as obsolete, the IR3843AMTR1PBF remains a reliable choice for applications requiring high efficiency and compact design. Its compliance with REACH regulations and moisture sensitivity level of 2 (1 Year) make it suitable for use in diverse environments.