Texas Instruments" UCC3813PW-3 current controller can modulate different levels of voltage, depending on what your requirements are. This current mode controller supports boost|buck|flyback|forward topology. Its single PWM output produces a current of 1000 mA. Its switching regulator has a frequency of 1000 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 current mode controller"s maximum duty cycle is 100 %. This current mode controller has a minimum operating temperature of 0 °C and a maximum of 70 °C. This device has a maximum of 12 V.