111-4190PBF

Overview

The Infineon Technologies 111-4190PBF is a digitally configurable, synchronous buck DC/DC converter featuring integrated power MOSFETs. It supports an output current of 25 A and utilizes a PMBus or I²C interface for digital control. The device operates with a positive adjustable output voltage range starting from 0.5 V. It is housed in a compact 34-PowerVFQFN package, designed for high-efficiency step-down conversion in space-constrained applications requiring precise digital regulation.

Feature Summary

• Digitally configurable synchronous buck topology with integrated MOSFETs
• Supports PMBus and I²C interfaces for advanced monitoring and control
• Positive adjustable output voltage capability

Applications

• Digital point-of-load regulation
• High-density server power supplies
• Telecommunications equipment power distribution

Procurement Notes

Verify the exact ordering suffix to ensure compatibility with required pin configurations and thermal specifications. Confirm that the component meets specific environmental compliance standards required for your target market. Cross-reference the datasheet revision date to ensure access to the most recent electrical characteristics and application guidelines before finalizing procurement decisions.

Selection Notes

Select this component when digital programmability and high current density are required. Ensure the input voltage range matches the system supply rails. Verify that the PCB layout can accommodate the 34-PowerVFQFN package dimensions. Consider thermal management requirements given the 25 A output capability and the need for adequate copper area for heat dissipation.

Part Context

This part belongs to Infineon's family of digitally controlled power management ICs. It integrates control logic and power stages into a single solution, reducing external component count compared to analog counterparts. The series targets applications demanding flexible voltage settings and real-time telemetry via standard digital communication protocols.

Replacement Considerations

Check for direct pin-to-pin replacements within the same product family that may offer updated thermal performance or revised digital interface support. Verify functional equivalence regarding switching frequency ranges and protection features before substituting.