QX5241 is a step-down high-precision high-brightness LED constant current drive controller

QX5241 sets the output current through an external resistor, the maximum output current can reach 2.5A; the current detection accuracy can be up to ± 1%; the peripheral requires only a few components to realize the step-down, constant current drive function, and can pass DIM The pins implement the brightness control function.

The system adopts the inductor current hysteresis control method, has a very fast response to load transients, and has a high rejection ratio to the input voltage; its inductor current ripple is 20%, and the maximum operating frequency can reach 1MHz.

QX5241 is particularly suitable for applications with a wide input voltage range, with an input voltage range from 5.5V to 36V; and an operating temperature range from -20 ° C to 85 ° C.

QX5241 has a built-in LDO, the output voltage is 5V, and the maximum output current is 5mA.

QX5241 is available in a small SOT23-6 package.