IRU3048CSTR

Overview

The IRU3048CSTR is a synchronous step-down DC/DC converter from Infineon Technologies, designed for high-efficiency power management in compact electronic systems. It integrates two independent channels capable of delivering up to 12A per channel with an input voltage range supporting various industrial and consumer applications. The device features adjustable output voltages, integrated power MOSFETs, and comprehensive protection mechanisms including overcurrent, thermal, and short-circuit protection. Its small footprint and high switching frequency enable the use of minimal external components, optimizing board space while maintaining stable performance under dynamic load conditions.

Feature Summary

• Dual-channel architecture providing independent regulated outputs
• Integrated high-side and low-side power MOSFETs for efficient conversion
• Adaptive on-time control for fast transient response
• Comprehensive protection suite including thermal shutdown and current limiting

Applications

• Industrial automation controllers
• Point-of-load regulation for FPGA and ASICs
• Telecommunications infrastructure equipment
• Consumer electronics requiring multi-rail power supplies

Procurement Notes

Verify the specific suffix (e.g., STR) indicates the reel packaging format when ordering. Confirm that the operating temperature range and output voltage settings align with your system requirements. Ensure compatibility with the intended switching frequency configuration. Check for any recent product lifecycle notifications or recommended replacements before finalizing procurement plans.

Selection Notes

Select this component when dual isolated rails are needed from a single input source. Evaluate thermal dissipation requirements based on total output current and ambient temperature. Consider the need for external compensation if operating at frequencies significantly different from standard configurations. Verify that the input voltage range covers the minimum and maximum supply variations expected in the application environment.

Part Context

This part belongs to Infineon’s IRU series of synchronous buck converters, known for integrating power stages and control logic into a single package. The series targets applications demanding high current density and rapid transient response. It complements other Infineon power management solutions by offering a scalable platform for multi-phase or multi-output designs without requiring complex external driver circuits.

Replacement Considerations

Check Infineon's official replacement guide for direct pin-compatible alternatives such as newer iterations within the IRU series. Verify electrical parameter equivalence, particularly regarding peak current limits and thermal resistance. Ensure that any substitute maintains the same package outline dimensions for mechanical compatibility.