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®
STLD20D
WHITE LED POWER SUPPLY
PRELIMINARY DATA
ASD™
FEATURES
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APPLICATION
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High efficiency above 80% Can drive up to 4 LEDs in series from 2.
8V supply Constant LED current regulation Integrated LED disconnect switch that cuts the LEDs branch in shutdown mode Constant switching frequency Stable current regulation across the total input
voltage range Supply
voltage rejection Inherent soft start by limiting the peak inductor current Peak inductor current adjustability (STLD20DC8 only) Shutdown pin with possibility of PWM dimming control Over
voltage and over temperature protection with automatic restart Low shutdown current 1µA ...