5Pcs DC 3.3V 3.7V 5V LED Driver 30-1500MA Constant Current Adjustable Module PWM
The frequency of the PWM signal should be less than 2KHz. 30-1500MA LED Driver Constant current adjustable Module( no Pin). The on-chip power transistor and current sense block greatly reduce the external component count, which makes the LD06AJSA/B ideal for LED driver.