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MAX1553 High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs

Maxim-Dallas

MAX1553 High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs RSS Sample
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3922
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ANALOG DEVICES
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High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs. The MAX1553/MAX1554 drive white LEDs in series with a constant current to provide efficient display backlighting in cellular phones, PDAs, and other hand-held devices. The step-up converter includes an internal 40V, low RDSON, N-channel MOSFET switch for high efficiency and maximum battery life. The MAX1553 has a current limit of 480mA for driving two to six white LEDs, while the MAX1554 has a current limit of 970mA for driving up to 10 white LEDs.

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