MAX1553
Description
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.
Key Features
- Highly Integrated and Flexible Solution for Wide Range of Backlighting Applications
- Constant-Current Regulation for Even LED Illumination
- Internal 40V MOSFET Switch Capable of Driving 10 LEDs
- 2.7V to 5.5V Input Voltage Range
- Analog or PWM Control of LED Intensity
- Optimized for Low Input Ripple
- Soft-Start Minimizes Inrush Current
- High Efficiency Improves Battery Life
- Up to 88% Efficiency Driving 6 LEDs
- Up to 82% Efficiency Driving 9 LEDs (20mA, VCC = 3.6V)
Applications
- Highly Integrated and Flexible Solution for Wide
