Datasheet Summary
19-4370; Rev 0; 11/08
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High-Efficiency, White LED Step-Up Converter with I2C Interface in 2mm x 2mm WLP
General Description
The MAX8831 integrates a 60mA, 28V PWM DC-DC step-up converter with five low-dropout LED current regulators for display and keypad backlighting in cell phones, PDAs, and other portable devices. The IC provides up to 90% efficiency over the entire input voltage range of 2.7V to 5.5V. The step-up converter operates at a fixed 2MHz switching frequency, enabling the use of very small external ponents to achieve a pact circuit area. For improved efficiency, the step-up converter automatically transitions to...