It"s possible to save energy in your circuit by using this L6599ATDTR PWM controller by STMicroelectronics. You can operate this at a switching frequency of 58.2 to 61.8|240 to 260 kHz. This product will be shipped in tape and reel packaging so that components can be mounted effectively. 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 50 %. This device has a minimum operating supply voltage of 8.85 V and a maximum of 16 V.