Texas Instruments has the solution you need for your voltage control needs with their TL3843P current controller. With an output that has a voltage of 0 to 30 V, this is power management at its best. Its single PWM output produces a current of 200(Max) mA. This current mode controller supports boost|flyback|forward topology. You can operate this at a switching frequency of 500 kHz. 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 maximum of 30 V. This current mode controller"s maximum duty cycle is 97(Typ) %. This current mode controller has a minimum operating temperature of 0 °C and a maximum of 70 °C.