111-4188PBF

Overview

The Infineon Technologies 111-4188PBF is a high-performance synchronous buck switching regulator IC designed for demanding power management applications. It features an adjustable output voltage range from 0.5V to 18.38V and supports a continuous output current of up to 6A. The device operates with a wide input voltage range of 1.2V to 21V, ensuring compatibility with various supply rails. It integrates PMBus interface capabilities for digital control and monitoring. The unit is housed in a compact 35-pin IQFN package (5x6 mm) and is rated for operation at junction temperatures between -40°C and 125°C.

Feature Summary

• Integrates PMBus digital interface for precise configuration and real-time monitoring
• Supports wide input voltage range from 1.2V to 21V for flexible system integration
• Delivers high continuous output current capability up to 6A
• Features low dropout voltage characteristics for improved efficiency under load

Applications

• Industrial equipment power distribution
• Telecommunications infrastructure systems
• Computing and server board power regulation

Procurement Notes

Verify the specific suffix and marking code against the official Infineon datasheet to ensure exact component matching. Confirm RoHS compliance status and packaging quantity requirements prior to ordering. Check for any recent lifecycle notices or obsolescence warnings directly from the manufacturer. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when a digitally controllable buck converter with PMBus support is required. It is suitable for designs needing adjustable output voltages within the specified range and high current delivery. Consider the thermal performance of the 35IQFN package relative to the expected ambient conditions and load profile during the design phase.

Part Context

This part belongs to the IR38060 family of synchronous buck regulators. It represents a solution for efficient DC-DC conversion in space-constrained environments. The device combines analog control loops with digital interface capabilities, bridging traditional power management with modern system monitoring needs.

Replacement Considerations

Consult official replacement guides for direct equivalents. Verify pinout compatibility and electrical specifications before substituting with other models in the IR380xx series or competing families.