FAN251015MNTXG

Overview

The FAN251015MNTXG is a synchronous buck regulator from onsemi, housed in a WQFN-34 package. It supports an input voltage range of 4.5 V to 18 V and delivers up to 15 A output current. The adjustable output voltage spans from 500 mV to 5.5 V. Operating frequencies are configurable between 200 kHz and 2.2 MHz. The device features PMBus 1.3.1 compatibility for digital control and monitoring. It operates within a temperature range of -40°C to +125°C and includes shutdown functionality.

Feature Summary

• Integrated PMBus 1.3.1 interface for digital configuration and system monitoring
• Synchronous buck topology supporting high efficiency at heavy loads
• Configurable switching frequency ranging from 200 kHz to 2.2 MHz
• Built-in shutdown capability for power management control

Applications

• AMD Kintex US+ FPGA power systems
• High-performance computing server boards
• Industrial equipment power distribution networks

Procurement Notes

Verify the specific suffix 'TXG' against the manufacturer's official datasheet to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the component matches the required RoHS and REACH compliance standards for your target market. Cross-reference the WQFN-34 package outline with your PCB footprint library to guarantee mechanical fit and thermal pad alignment before finalizing procurement orders.

Selection Notes

Select this component when a single-phase solution is required to deliver up to 15 A from a 4.5 V to 18 V input rail. The integrated PMBus interface makes it suitable for applications requiring dynamic voltage scaling or detailed telemetry. Consider the WQFN-34 package size relative to available board space and thermal dissipation requirements compared to higher-current stackable alternatives like the NCP3286 series.

Part Context

This part belongs to the FAN251015 series of synchronous buck regulators designed for demanding digital load applications. It complements other onsemi power management solutions such as the NCP3294 for higher current needs or the FAN53730 for lower voltage rails. The series emphasizes compact form factors and digital controllability for modern embedded systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternatives based on pin compatibility and electrical specifications only after verifying official cross-reference data from the manufacturer.