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DC/DC voltage regulators handle up to 14A

Posted: 06 Jun 2008 ?? ?Print Version ?Bookmark and Share

Keywords:voltage regulator? consumer application? SupIRBuck?


International Rectifier has expanded its SupIRBuck portfolio of wide input, single output integrated point-of-load (POL) DC/DC voltage regulators with the IR380x family for consumer embedded POL applications up to 14A. The size and feature set of the devices are optimized for high performance consumer applications including game consoles, desktop PCs, graphics cards, STBs and LCD TVs.

The new application-specific devices integrate IR's high performance control ICs optimized with HEXFET MOSFETs in a compact 5mm x 6mm power QFN package to enable up to 70 percent space savings compared to discrete solutions, while maintaining an equivalent overall total solution cost.

"Because of its high level of integration and small footprint, the SupIRBuck family delivers significant space savings to help reduce overall system costs for consumer applications while offering superior flexibility and efficiency over traditional implementation using discrete components," said Goran Stojcic, executive director, IR enterprise power applications and technical marketing.

The SupIRBuck family of voltage regulators is designed for 4-, 7- and 12A of output load current at 600kHz and 6-, 9- and 14A at 300kHz respectively. Key features include wide range input of 2.5V to 21V and output range of 0.6V to 12V, pre-bias start up, a choice of two fixed switching frequencies, hiccup current limit, thermal shutdown and precise output voltage regulation.

In addition, the IR380x family's thermally enhanced packages with slim 0.9mm profile allow mounting on the back-side of the motherboard for additional space saving and enable no-air flow operation without heat sink below 10A.

Pricing for the IR380x devices begins at $1.13 each in 10,000-unit quantities.

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