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LP8557, LP85571
SNVSA15B
- DECEMBER 2013
- REVISED DECEMBER 2015
LP8557 High-Efficiency LED Backlight Driver For Tablets
1 Features
- 1 High-Efficiency DC-DC Boost Converter With 28-V Integrated Power MOSFET
- 2.7-V to 5.5-V VDD Range for Supporting SingleCell Li-Ion Battery Applications
- Six 25-mA High-Precision LED Current Sinks
- Adaptive Boost Voltage and LED Current Sink Headroom Controls for Maximum System Efficiency
- LED String Count Auto-Detect for Maximum Design Flexibility
- Smart Phase Shift PWM Mode for Reduced Audible Noise
- PWM Input Duty Cycle Brightness Control, PWM Output Frequency...