The RT8470GSP is a high efficiency continuous mode inductive Step-down Converter designed for driving single or multiple series connected LEDs from a voltage source higher than the LED voltage. It operates from an input voltage of 7 to 30V and employs hysteretic control with a high-side current sense resistor to set the constant output current. The RT8470 includes an output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. LED brightness control is achieved with PWM dimming from an analogue or PWM input signal.
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