Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3533 SNOSC68C – APRIL 2012 – REVISED SEPTEMBER 2015 LM3533 Complete Lighting Power Solution for Smartphone Handsets 1 Features •1 Drives Two Parallel High-Voltage LED Strings for Display and Keypad Lighting • High-Voltage Strings Capable of up to 40-V Output Voltage and up to 90% Efficiency • Up to 30 mA per Current Sink (Both Backlight and Indicator) • 14-Bit Equivalent Exponential Dimming With 8-Bit Programmable Backlight Code • Selectable Analog ALS Input with 128 Programmable Gain-Setting Resistors or PWM ALS Input With Internal Low-Pass Filter • PWM Input for Content Adjustable Brightness Contro...

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