FAN5029MPX

DC DC Switching Controllers Overview

The FAN5029MPX is an 8-bit programmable multi-phase buck switching regulator controller designed for high-performance power management. It supports 2 to 5 synchronous phases, enabling efficient conversion of a 12V input supply to processor core voltages. The device operates with a maximum switching frequency of 1000 kHz and utilizes a QCC40 lead-free MLP-40 package. It integrates advanced features such as current limit protection and is optimized for applications requiring precise voltage regulation and dynamic load response.

DC DC Switching Controllers Feature Summary

• Supports 2 to 5 synchronous phases for flexible power delivery
• Optimized for converting 12V input to processor core voltages
• Integrates current limit protection for system safety

DC DC Switching Controllers Applications

• Processor core voltage regulation
• High-performance computing power supplies
• Multi-phase buck converter designs

DC DC Switching Controllers Procurement Notes

Verify component status carefully as the FAN5029 series may be discontinued or obsolete by Fairchild Semiconductor. Confirm availability through authorized distributors or secondary market suppliers like Rochester Electronics. Ensure compatibility with existing PCB footprints and control logic before procurement.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring multi-phase synchronization and high efficiency from a 12V rail. Consider the 40-pin MLP package constraints and thermal requirements. Verify that the 8-bit programmability meets the specific voltage and phase count needs of the target design.

DC DC Switching Controllers Part Context

Fairchild Semiconductor, now part of ON Semiconductor, produced the FAN5029 series for high-end digital loads. The MPX suffix typically denotes a tape-and-reel packaging variant. This component belongs to the family of multi-phase buck controllers aimed at reducing input ripple and improving transient response for sensitive integrated circuits.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product is listed as obsolete, engineers must evaluate pin-compatible alternatives or redesign the power stage using currently active multi-phase buck controllers from ON Semiconductor or other manufacturers.