The VUP, VSI and VSA series are very thin, highly efficient step up and step down converters. The outputs can be user adjusted from 0 to 100% of output value. This can be accomplished by setting internal resistors or external circuitry. These units are non-isolated with standard features such as on/off control, over current protection and low ripple noise (down to 10 mVp-p). The VSI series has a standard TO-3PL package. Please refer to the noted link for detailed usage instructions, test data and technical notes.