FDS6984AS

FET, MOSFET Arrays Overview

The FDS6984AS is a dual N-channel PowerTrench MOSFET array in an SO-8 package. It integrates two distinct 30V logic-level transistors designed to replace discrete MOSFETs and Schottky diodes in synchronous DC-DC converters. The high-side switch (Q1) optimizes switching loss, while the low-side switch (Q2) minimizes conduction loss. Rated for 5.5A continuous drain current at 25°C and 8.5A at 10°C, it supports peripheral voltage generation in laptops and battery-powered devices.

FET, MOSFET Arrays Feature Summary

• Integrates two unique N-channel MOSFETs into a single SO-8 package to replace discrete components
• Optimizes high-side switch performance by reducing switching losses
• Optimizes low-side switch performance by minimizing conduction losses
• Features SyncFET body diode reverse recovery characteristics

FET, MOSFET Arrays Applications

• Synchronous DC-DC power supplies
• Laptop peripheral voltage generation
• Battery-powered electronic devices

FET, MOSFET Arrays Procurement Notes

Verify component status before procurement as the FDS6984AS may be obsolete or end-of-life. Confirm availability through authorized onsemi distributors or check for valid replacement part numbers. Ensure the source document explicitly states current manufacturing status. Do not rely on generic inventory listings. Validate package type and pinout compatibility with existing designs prior to ordering.

FET, MOSFET Arrays Selection Notes

Select this component for applications requiring space-saving integration of high-side and low-side switches in synchronous buck converters. The dual configuration reduces board area compared to discrete solutions. Consider the specific thermal requirements for the 5.5A/8.5A ratings. Verify that the 30V breakdown voltage aligns with the target circuit's operating voltage. Evaluate the trade-off between switching speed and conduction resistance for the specific load profile.

FET, MOSFET Arrays Part Context

This device belongs to onsemi’s PowerTrench MOSFET family, known for optimized gate charge and low on-resistance. The FDS6984AS specifically targets the dual-switch requirement in point-of-load converters. It represents a consolidation strategy where separate active and freewheeling elements are merged into a single monolithic die structure to improve efficiency and reduce parasitic inductance.

FET, MOSFET Arrays Replacement Considerations

Public confirmed substitute part numbers include CWDM305ND TR13 PBFREE from Central Semiconductor. Verify electrical parameter equivalence and pin compatibility before substitution.