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Power MOSFETs offer low on-resistance

Posted: 25 Aug 2008     Print Version  Bookmark and Share

Keywords:MOSFETs  p-channel  voltage ratings  PowerPAK SC-75 

p-channel power MOSFETs

Vishay Intertechnology Inc. has released a family of p-channel power MOSFETs in the PowerPAK SC-75, including several devices rated from 8V to 30V that are touted as industry-firsts for their voltage ratings in this package type.

Among the devices released are -12V (SiB419DK) and -30V (SiB415DK) single p-channel power MOSFETs in the PowerPAK SC-75 package. The previously announced SiB417DK is the first such -8V device and is now joined by an ESD-protected version with the same -8V rating, the SiB417EDK. Both of these 8V devices include on-resistance specifications down to VGS=1.2V, potentially allowing designers to reduce space requirements, power consumption and solution cost by eliminating the need for level-shift circuitry. The new products also include two -20V devices, the single SiB411DK and dual SiB911DK. On-resistance for the single devices at a 4.5V gate drive ranges from 0.052Ω to 0.066Ω.

The Vishay Siliconix PowerPAK SC-75 power MOSFETs measure 1.6mm x 1.6mm x 0.75mm—the same area dimensions as the standard SC-75—but offer much lower on-resistance because of the construction that accommodates a larger die within the same footprint. The PowerPAK SC-75 is 100% lead (Pb)-free, halogen-free, and RoHS-compliant.

The new PowerPAK SC-75 devices come in a new miniaturised package to save space and reduce power consumption in portable electronic systems. These devices have smaller MOSFET packages with low power consumption to help designers meet consumer expectations for battery run times between charges.

Typical applications for the p-channel PowerPAK SC-75 power MOSFETs includes load switching in cell phones, PDAs, digital cameras, MP3 players and smart phones. The -30V SiB415DK will also be used for load switching and driving white LEDs in notebook computers and other portable devices.

Samples and production quantities of the new PowerPAK SC-75 power MOSFETs are available, with lead times of 10 to 12 weeks for larger orders.

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