New Industry Products

Fairchild Semiconductor Introduces New PowerTrench P-Channel MOSFETs

October 08, 2000 by Jeff Shepard

Fairchild Semiconductor (South Portland, ME) introduced a new family of 20V PowerTrench P-channel MOSFETS with 8V and 12V VGS ratings. The company claims that the devices offer a guaranteed maximum Rds(on) rating of 1.8VGS for switching low voltages, thereby eliminating the need for additional boost circuitry for all devices with 8V gate-source voltage.

Fairchild is now offering several 20V P-channel devices with, they claim, the lowest on-resistance in their class. They cite the SuperSOT-8 FDR840P as an example. With a 20VDS/12VGS MOSFET, this particular device specifies a maximum Rds(on) of 11mohms at 4.5V VGS. Meanwhile, the FDW254P, a single 20V P-channel MOSFET in a TSSOP-8 package, performs at 2.5V VGS with an Rds(on) of 15mohms. Also available in smaller footprints, the FDN304P in a SuperSOT-3 package and the single FDC604P in a SuperSOT-6 package offer Rds(on) of 70mohms and 43mohms, respectively. The FDW2506P, a dual 20VDS/12VGS MOSFET in a TSSOP-8 package, has an Rds(on) of 37mohms at 2.5V VGS.

Devices in this new 20V VDS series can replace many sockets in existing 8V and 12V designs due to better on-resistance. The devices are claimed to provide superior power management, increasing the talk time of cellular phones and the battery running time of various portable applications. Packages include low-profile SuperSOT-8, TSSOP-8, SuperSOT-6 and SuperSOT-3.

These new MOSFETs are currently available. Pricing ranges from $0.45 to $0.95 in 100,000-piece quantities.