TOKYO, JAPAN: Renesas Electronics Corp., a premier provider of advanced semiconductor solutions, announced the availability of its lineup of five low-loss P-channel power metal-oxide-semiconductor field-effect-transistor (MOSFET) products, including the µPA2812T1L, optimized for use in charge control switches for lithium-ion (Li-ion) secondary batteries of notebook PCs and power management switches for power supply switching with AC adapters.
Demand has increased in recent years for notebook PCs with lower power consumption by the overall system, longer running time when using battery power, and smaller and thinner form factors. Power MOSFETs are used in charge control switches for Li-ion secondary batteries and power management switches for power supply switching with AC adapters.
They must handle the large current flows needed to operate the system overall, and this has brought demand for reduced operating resistance (on-resistance) in order to lower system power consumption. At the same time, there is strong demand for smaller and thinner Li-ion battery packs as notebook PC bodies become slimmer and more compact.
This means that power MOSFET products with smaller packages than the conventional SOP-8 are needed. In response to this demand, Renesas has developed a new fabrication process employing ultrafine process technology, among other innovations, that reduces the on-resistance by half for the same effective area compared with the earlier process used to fabricate MOSFETs for similar applications. The five new products, including the µPA2812T1L, deliver low on-resistance in very compact packages.
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