You can save energy in your circuit by soft-switching and implementing the L6599AD PWM controller by STMicroelectronics. This part offers a switching frequency of 58.2 to 61.8|240 to 260 kHz in order to work properly. In order to ensure parts aren't damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This device has a minimum operating supply voltage of 8.85 V and a maximum of 16 V. This soft switching controller has a minimum operating temperature of -40 °C and a maximum of 150 °C. This soft switching controller's maximum duty cycle is 52 %.