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IR3891MTR1PBF

IR3891MTR1PBF Description

The IR3891MTR1PBF is a high-performance, adjustable output buck regulator from Infineon Technologies, designed to deliver up to 4A of output current. This device is part of the SupIRBuck® series, known for its efficiency and reliability in power management applications. The regulator operates over a wide input voltage range of 1V to 21V, making it suitable for various power supply requirements. It features a switching frequency range of 300kHz to 1.5MHz, allowing for flexible design options to optimize efficiency and performance.

The IR3891MTR1PBF is housed in a PQFN (5x6) package, which is ideal for surface mount applications, ensuring a compact footprint and enhanced thermal performance. The device supports a positive output configuration with a minimum output voltage of 0.5V and a maximum of 18.06V, providing a wide range of adjustable output voltages to meet diverse application needs. Additionally, the regulator incorporates a synchronous rectifier, which enhances efficiency and reduces power loss.

IR3891MTR1PBF Features

• Adjustable Output Voltage: The IR3891MTR1PBF offers an adjustable output voltage range from 0.5V to 18.06V, providing flexibility to meet specific application requirements.
• High Efficiency: With a synchronous rectifier, the regulator achieves high efficiency across the entire load range, minimizing power loss and improving overall system performance.
• Wide Input Voltage Range: The device operates from 1V to 21V, making it suitable for a variety of input power sources, including batteries and unregulated power supplies.
• Flexible Switching Frequency: The regulator supports a switching frequency range of 300kHz to 1.5MHz, allowing designers to optimize for size, efficiency, and performance.
• Compact and Efficient Packaging: The PQFN (5x6) package ensures a small footprint and enhanced thermal performance, ideal for space-constrained applications.
• Moisture Sensitivity Level: MSL 2 (1 Year) ensures reliability in various environmental conditions, making it suitable for industrial and consumer applications.
• Compliance and Status: The IR3891MTR1PBF is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

IR3891MTR1PBF Applications

The IR3891MTR1PBF is well-suited for a variety of applications that require efficient power management and a wide range of adjustable output voltages. Some specific use cases include:

• Consumer Electronics: Ideal for portable devices, where space and efficiency are critical. The regulator's wide input voltage range and adjustable output make it suitable for applications such as smartphones, tablets, and laptops.
• Industrial Equipment: The device's robustness and wide operating range make it suitable for industrial applications, including PLCs, motor drives, and instrumentation.
• Telecommunications: The IR3891MTR1PBF can be used in base stations and networking equipment, where high efficiency and reliability are essential.
• Automotive: The regulator's wide input voltage range and high efficiency make it suitable for automotive applications, such as infotainment systems and electronic control units.

Conclusion of IR3891MTR1PBF

The IR3891MTR1PBF from Infineon Technologies is a versatile and efficient buck regulator that offers a wide range of adjustable output voltages and high current capabilities. Its flexible switching frequency range and compact PQFN packaging make it an ideal choice for a variety of applications, from consumer electronics to industrial equipment. Despite being marked as obsolete, the IR3891MTR1PBF remains a reliable and efficient solution for power management needs, offering significant advantages over similar models in terms of efficiency, flexibility, and reliability.