Fairchild Semiconductor’s next generation DrMOS delivers over 92 percent peak efficiency in the industry’s smallest package

Citation

(2009), "Fairchild Semiconductor’s next generation DrMOS delivers over 92 percent peak efficiency in the industry’s smallest package", Microelectronics International, Vol. 26 No. 1. https://doi.org/10.1108/mi.2009.21826aad.001

Fairchild Semiconductor’s next generation DrMOS delivers over 92 percent peak efficiency in the industry’s smallest package

Article Type: New products From: Microelectronics International, Volume 26, Issue 1

Fairchild Semiconductor (NYSE: FCS) introduces XS™ DrMOS, the industry’s first high-performance and space-efficient 6 × 6 mm DrMOS solution for synchronous DC-DC buck regulators for computing, game console and consumer point-of-load (POL) applications. The FDMF6704 is a FET-Plus-Driver module that replaces one driver IC, one high-side MOSFET, two low-side MOSFETS and one bootstrap Schottky diode in an ultra-compact package. The thermally enhanced 6 × 6 mm MLP package saves 84 percent board space compared to discrete solutions and 44 percent compared to 8 × 8 mm MLP packaged DrMOS modules. It delivers 92 percent peak efficiency, enabling applications to meet stringent energy-efficiency specifications such as ENERGY STAR®, Climate Savers® and Green GridSM.

Packed with advanced features, the FDMF6704 has been designed and optimized to work with a wide variety of controllers in the market. It is compatible with both tri-state and non-tri-state PWM controllers. To further ensure compatibility, the FDMF6704 has its PWM threshold levels tailored to meet a broad range of controllers available in the market. A 5 V gate driver circuit and an improved PCB interface guarantee higher performance from this compact module. Fairchild’s advanced SyncFET™ technology is integrated within the module’s low-side MOSFET further ensuring higher performance. The module is also furnished with a diode emulation (SMOD) function for increased light loading efficiency.

Fairchild Semiconductor’s DrMOS, the FDMFxxxx series, is a complete family of fully optimized, integrated FET-plus-driver multi-chip power stage modules designed for multiple synchronous buck converter applications. These multi-chip modules are designed to achieve the optimal solution for a given application by using components that are matched electrically, thermally and mechanically.

The FDMF6704 utilizes lead-free (Pb-free) terminals and has been characterized for moisture sensitivity in accordance with the Pb-free reflow requirements of the joint IPC/JEDEC standard J-STD-020. All of Fairchild’s products are designed to meet the requirements of the European Union’s Directive on the restriction of the use of certain substances (RoHS).