The RT9173AGL5 is a single-chip, 5-channel LED driver IC manufactured by Richtek. It features a boost-type PFC pre-regulator and adjustable current linear power converters for driving LEDs with high efficiency, allowing for wide dimming range and extremely uniform illumination; this makes it suitable for applications including LED bulb, LED tube, LED downlight, LED panel light, and LED street light. The RT9173AGL5 also includes a range of protection features, including over-current and over-voltage protection, over-temperature protection, and short-circuit protection, ensuring that it is safe and reliable.