AIC1841 pump equivalent, high efficiency 1.5x charge pump.
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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