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Intersil regulator drives 12 LEDs

Posted: 13 Dec 2002 ?? ?Print Version ?Bookmark and Share

Keywords:intersil? el7513? white led driver? step up regulator? led driver?

The EL7513 PWM step-up regulator drives up to 12 LEDs and is claimed by the company to ensure uniform brightness in white LED backlighting applications such as in cellphones, PDAs, and digital cameras.

Available in an 8-pin TSOT package, the device operates from a 2.6V to 5.5V source and boosts its output to a maximum of 18V. It features soft-start and dimming control, offers 4 percent LED diode current accuracy, and can achieve up to 89 percent efficiency when driving a 30mA load. The regulator has a switching frequency of 1MHz and draws 1?A during standby.

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