1MHz Switching Frequency 2.7V to 5.5V Input Voltage Range Low Shutdown Current: ≦1µA Regulated 20mA Full-Scale Output Current 32-Position Linear Scale with Digital Contro.

Cellular Phones PDAs Digital Still Cameras Handheld Devices White LED Backlighting GENERAL DESCRIPTION The AIC1841 and .

The AIC1841 and AIC1842 provide 4 and 6 LED current source outputs with regulated constant current for uniform intensity. The AIC1841/2 is the low noise, constant frequency charge pump DC/DC converter that uses 1.5X conversion to increase efficiency .

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