The FDS6910-NL is a dual N-Channel PowerTrench® MOSFET from Fairchild Semiconductor (now ON Semiconductor), designed for high-efficiency synchronous buck converter applications. It integrates two MOSFETs in a single SO-8 package, optimizing board space and simplifying design.

Applications:

• Synchronous rectification in DC-DC converters
• Notebook computers
• Point-of-load (POL) converters
• Battery management systems

Features:

• Dual N-Channel MOSFETs in a single package
• Low on-resistance (RDS(on)) for both MOSFETs
• Fast switching speed
• Low gate charge (Qg)
• SO-8 package for surface mount assembly
• RoHS Compliant

Benefits:

• Reduced board space requirements
• Improved efficiency in synchronous buck converters
• Simplified design and layout
• Lower component count
• Enhanced thermal performance

Technical Specifications:

The FDS6910-NL typically features a drain-source voltage (VDS) rating of 30V. The high-side MOSFET typically has an RDS(on) of around 25 mΩ at VGS = 10V, while the low-side MOSFET has a lower RDS(on) of around 15 mΩ at VGS = 10V, optimizing efficiency. The continuous drain current (ID) rating depends on thermal conditions. The gate charge (Qg) is low, minimizing driver losses. It is available in a standard SO-8 surface mount package.

The integration of two MOSFETs in a single package allows for a more compact and efficient design, especially in synchronous buck converter applications. The low RDS(on) minimizes conduction losses, improving overall efficiency. The fast switching speed reduces switching losses. The SO-8 package offers good thermal performance and is easy to assemble using standard surface mount techniques.

The FDS6910-NL is optimized for synchronous rectification, where the low-side MOSFET replaces the Schottky diode, significantly reducing power dissipation and improving efficiency. The different RDS(on) values for the high-side and low-side MOSFETs are chosen to optimize performance in this specific application. The FDS6910-NL is a suitable choice for applications requiring high efficiency, compact size, and ease of use.