The LM3405XMK/NOPB with LED Lighting Drivers 1.6MHz 1A Constant Current Buck Reg is a single-channel, step-down, OLED lighting driver regulation solution designed and manufactured by Texas Instruments. This product features a voltage range of 4.5V to 38V, a 1.6MHz switching frequency, and a constant current setting of up to 1A. The LM3405XMK/NOPB also offers a range of system protection features, including short circuit, under-voltage, and over-temperature protection. Additionally, this device includes a fault reporting feature that allows the system to be monitoring for various conditions. With its low quiescent current and high efficiency of up to 97%, the LM3405XMK/NOPB is an ideal choice for single channel OLED lighting applications.