FAN2315MPX

Overview

The FAN2315MPX is a synchronous step-down DC-DC converter from onsemi, designed for high-efficiency point-of-load applications. It accepts an input voltage range of 4.5V to 18V and provides an adjustable output voltage from 0.6V to 5.5V. The device supports a continuous output current of up to 15A. It features a compact 34-pin PowerTFQFN package with an exposed pad for thermal management. This regulator integrates internal power MOSFETs and operates at fixed frequencies to ensure stable performance in demanding electronic systems.

Feature Summary

• Synchronous buck topology for enhanced efficiency
• Integrated power switches and control logic
• Compact surface-mount packaging for space-constrained designs

Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for communication infrastructure
• Voltage conversion for embedded computing systems

Procurement Notes

Verify the specific suffix 'MPX' corresponds to the tape-and-reel packaging configuration as indicated by distributor listings. Confirm that the 15A current rating aligns with your thermal design requirements. Ensure the 34-pin PQFN footprint matches your PCB layout constraints. Cross-reference the datasheet version to confirm compatibility with your system's switching frequency needs.

Selection Notes

Select this component when a high-current, single-output solution is required within a 4.5V to 18V input window. The 15A capability suits applications needing significant power density. Consider the thermal performance of the exposed pad design if operating near maximum load. Verify that the adjustable output range covers your target voltage specifications without requiring external feedback adjustments beyond standard resistor networks.

Part Context

This part belongs to onsemi's family of high-efficiency synchronous buck regulators. It complements other models like the FAN2315AMPX, which offers a lower 10A current rating. The MPX variant distinguishes itself through its higher current capacity while maintaining similar architectural features. It serves as a robust option for applications transitioning from lower-power controllers to more demanding power delivery networks.

Replacement Considerations

The FAN2315AMPX is a confirmed substitute offering identical functionality with a reduced 10A output current limit. Ensure that the application does not require the full 15A capacity before selecting the AMPX variant. Both parts share compatible pinouts and control interfaces, facilitating direct replacement in designs where current headroom allows.