Highest Efficiency, Negative-Charge-Pump White-LED Driver with Two LDO Regulators Saves 50% PCB Area
Submitted by Ionela on Fri, 04/18/2008 - 07:07.
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SUNNYVALE, CA April 17, 2008 Maxim Integrated Products (Pink OTC Markets: MXIM) introduces the MAX8822, the industry's only white-LED (WLED) driver to combine a highly efficient negative charge pump with two independent, low-dropout (LDO) regulators. Available in a tiny, 3mm x 3mm x 0.8mm TQFN package, this single-chip solution for driving up to four WLEDs is 50% smaller than the standard two-chip solution. To achieve the industry's highest efficiency, the MAX8822 features a negative-charge-pump architecture that completely eliminates high-side in-line resistance, delaying 1x mode to 2x mode transition during battery discharge. |
