Alpha & Omega Semi Offering MOSFETs In Compact DFN3x3EP Package
Alpha & Omega Semiconductor, Inc. (AOS) announced that it now offers its advanced MOSFETs in the compact DFN3x3EP package and is the first to offer a monolithically integrated Schottky diode (SRFET™) in this type of package. The new product family is well suited for space-constrained applications requiring high efficiency dc-dc conversion such as notebook PCs, blade servers, networking equipment, graphics cards and dc-dc power supply modules.
The new DFN3x3EP package allows dc-dc designers to achieve higher current and power density as a result of the package’s exposed copper lead-frame, which permits efficient heat transfer into the printed circuit board. The 3 x 3mm package saves significant space by using only one-third the board area of an SO-8. At the same time, this smaller-sized DFN3x3EP package maintains the same 60°C/W thermal performance as SO-8-packaged devices.
The AON740x family consists of fast-switching high-side MOSFETs. They can be combined in synchronous buck converters with the low-side AON770x SRFET™ family for optimal efficiency and performance. The SRFET™ device’s Schottky body diode features a low-forward voltage drop of 0.4V that reduces power losses and a soft-recovery characteristic that reduces ringing and associated EMI.
"Recent advances in MOSFET processes are enabling significant reductions in silicon die sizes for a given RDS(ON). The resulting current density increases need to be complemented by similar improvements in packaging technology," said David Grey, Director of MOSFET Marketing at AOS. "AOS meets this challenge by combining our latest optimized MOSFET technologies – such as the SRFET™ – with a thermally efficient DFN3x3EP package to provide the electrical and thermal performance demanded by today’s power management applications."
The devices are priced as follows: AON7400 - $0.53; AON7700 - $0.60; AON7406 - $0.35; AON7702 - $0.59; AON7408 - $0.31; and AON7704 - $0.38.
