Vishay Intertechnology, Inc. (Vishay) has introduced a new 20-V P-Channel TrenchFET Gen III Power MOSFET, Si7137DP. The new device comes with the lowest on-resistance for a p-channel MOSFET with area of SO-8. The low on-resistance of the new MOSFETs transforms into lower conduction losses, enabling the devices to perform switching tasks with less power loss than any other previous p-channel power MOSFETs on the market.

The new Si7137DP in the PowerPAK SO-8 package provides an ultra-low on-resistance of 1.9 milliohms at 10 V, 2.5 milliohms at 4.5 V, and 3.9 milliohms at 2.5 V.

The new Si7137DP will be utilized as the adaptor switch and for the load switching applications in notebook computers and the industrial/general systems. Adaptor switches, switching between the adaptor/wall power or the battery power, are always on and drawing current. The lower on-resistance of the new Si7137DP translates into lower power consumption, saving power and the prolonging battery life between charges.

For applications like these where a 20-V device is adequate, the new Si7137DP frees up designers from having to rely on the 30-V power MOSFETs, which until recently were the only p-channel devices available within this very low on-resistance range. The closest 20-V p-channel device with greater than or equal to 12-V gate-to-source rating available from competitor features on-resistance of 14 milliohms at 4.5-V gate drive and is not characterized for a 10-V gate-to-source voltage. Among the competing 30-V devices, the lowest available p-channel on-resistance with area of the SO-8 footprint is 3.5 milliohms and 6.3 milliohms at gate drives of 10 V and 4.5 V respectively, still roughly double the new Si7137DP.

The company’s TrenchFET intellectual property incorporates many patents, including the fundamental technology patents dating from the early 1980s. Each new generation of the TrenchFET technology yields products that lift the bar for power MOSFET performance in a broad range of computing, communications, consumer electronics, and many other applications.

Vishay Intertechnology, Inc. is a manufacturer of discrete semiconductors and passive electronic components.