AS3490 Datasheet (ams) - Highly Efficient 2-6 LEDs Backlight Driver

AS3490, Highly Efficient 2-6 LEDs Backlight Driver

The AS3490 is an inductive highly efficient DCDC boost converter.

The DCDC converter operates at a fixed frequency of 2MHz and includes soft startup to allow easy integration into noise sensitive RF systems.

A predictable startup is guaranteed even with very low duty cycle PWM input signals.

The vol

AS3490 Features

* 2 MHz DCDC Boost converter - Small 4.7µH external coil - Very high system efficiency of 86% (DCDC and current sources combined) - Very low voltage changes on output to avoid acoustic noise on output capacitor even with PWM - Smooth startup even under low duty cycle PWM conditions

* Three C