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IR1161LTRPBF

IR1161LTRPBF Description

The IR1161LTRPBF from Infineon Technologies is a SmartRectifier™ synchronous rectifier control IC designed for high-efficiency power conversion applications. Operating within a 4.75V to 18V supply range and consuming just 5 mA of current, this surface-mount device is optimized for use in switch-mode power supplies (SMPS) and DC-DC converters. Its Not For New Designs status indicates it remains a reliable choice for existing systems, though newer alternatives may be preferred for future projects. The IC is ROHS3 Compliant and REACH Unaffected, ensuring environmental compliance, and comes in a Tape & Reel (TR) package for automated assembly.

IR1161LTRPBF Features

• SmartRectifier™ Technology: Enhances efficiency by minimizing conduction losses in synchronous rectification.
• Wide Voltage Range (4.75V–18V): Supports diverse power supply architectures.
• Low Quiescent Current (5 mA): Reduces standby power consumption.
• Surface-Mount Design: Facilitates compact PCB layouts.
• Robust Compliance: Meets ROHS3 and REACH standards.
• Moisture Sensitivity Level (MSL 1): Suitable for extended storage and handling.

IR1161LTRPBF Applications

This IC excels in:

• High-Efficiency AC-DC Converters: Ideal for server PSUs, telecom power systems, and industrial SMPS.
• DC-DC Buck/Boost Converters: Optimizes synchronous rectification in isolated and non-isolated topologies.
• LED Drivers: Improves energy efficiency in high-power lighting applications.
• Automotive Power Systems: Suitable for auxiliary power modules (with proper voltage conditioning).

Conclusion of IR1161LTRPBF

The IR1161LTRPBF offers a balance of performance and reliability for synchronous rectification, leveraging Infineon’s SmartRectifier™ technology to reduce losses in power conversion stages. While it is Not For New Designs, its proven efficiency, compliance, and versatility make it a strong candidate for legacy or cost-sensitive projects requiring robust rectification control. Engineers should evaluate newer alternatives for forward-looking designs but can rely on this IC for existing high-efficiency power systems.