IRU3138CSTR

DC DC Switching Controllers Overview

The IRU3138CSTR is a synchronous buck regulator controller IC from Infineon Technologies, designed for low-cost voltage tracking applications. It operates with a 5 V input to provide a 1.6 V output at up to 12 A. The device features a switching frequency range of 200 kHz to 400 kHz and achieves an efficiency of 90%. Packaged in a 14-SOIC format, it supports enable control and duty cycle adjustment up to 90%.

DC DC Switching Controllers Feature Summary

• Synchronous step-down DC-DC conversion topology
• Optimized for DDR memory voltage tracking
• Integrated enable functionality
• Adjustable switching frequency operation

DC DC Switching Controllers Applications

• DDR memory power supply regulation
• Graphics card single output power supplies
• General purpose on-board DC-DC converters
• Voltage tracking systems

DC DC Switching Controllers Procurement Notes

Verify the obsolete part status indicated by distributor listings before procurement planning. Confirm compatibility with existing board designs due to potential supply chain changes. Check for alternative sourcing channels as standard availability may be limited. Ensure design-in approval accounts for end-of-life management strategies.

DC DC Switching Controllers Selection Notes

Select this component for cost-sensitive synchronous buck applications requiring precise voltage tracking. The 14-SOIC package suits space-constrained designs needing integrated control. Consider the fixed input-output relationship when designing power stages. Evaluate thermal performance within the specified current limits for reliable operation.

DC DC Switching Controllers Part Context

This controller belongs to Infineon’s power management portfolio targeting embedded graphics and memory subsystems. It complements other PMIC solutions by offering dedicated voltage regulation capabilities. The series supports efficient power delivery for digital logic components requiring stable rail voltages.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Infineon channels for current equivalent recommendations or updated product line replacements.