Low On-Resistance MOSFETs Enhance SMPS

Oct. 8, 2008
Promising to reduce power losses in switched mode power supplies (SMPS), the company’s latest 5V and 100V MOSFETs are optimized with low on-state resistance to reduce power loss in the secondary stage of SMPS. The first four MOSFETs in the

Promising to reduce power losses in switched mode power supplies (SMPS), the company’s latest 5V and 100V MOSFETs are optimized with low on-state resistance to reduce power loss in the secondary stage of SMPS. The first four MOSFETs in the lineup target AC power adapters or AC/DC power supplies in computing and consumer electronics. Three 75V devices and one 100V device can each be used as either the switch or synchronous MOSFET in the secondary stage of a SMPS. Three 75V devices provide a choice of current rating, on resistance, and packaging. The TK40A08K3 specifies a current rating of 40A with a typical on resistance of of 7.0 milliOhms and comes in a TO-220SIS package (TO-220F isolated). The TK80A08K3 sports a current rating of 80A, on resistance of 3.6 milliOhms, and resides in a TO-220SIS package. The 75V/80A TK80D08K3 has similar characteristics to the TK80A08K3 and comes in a non-isolated TO-220 package. The fourth device, TK40A10K3, is a 100V/40A device with typical on resistance of 11.5 miliOhms and resides in a TO-220SIS package. Prices in sample quantities start at $0.80 each. TOSHIBA AMERICA ELECTRONIC COMPONENTS INC., Irvine, CA. (949) 623-2900.

Company: TOSHIBA AMERICA ELECTRONIC COMPONENTS INC.

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