This table shows converters with single, bipolar, and asymmetrical dual and triple output options rated for 15W to 33W. All of these series have 2:1 input ranges with the exception of the 20W TWR series that accommodates the 4:1 input ranges of 9-36V and 18-75V (though still designated as D24 and D48). In the output voltage column, note that the 20W and 22W TWR series both offer the common analog configurations of 5/12/12V or 5/15/15V, while the 30W TWR series is configured with 3.3/12/12V or 3.3/15/15V, which is better suited to some mixed-signal applications. Note the last series on the slide, the UEP. “EP” stands for “External Pin-out”. Industry standard 1" x 2" products can come with either an internal pin-out configuration or an external pin-out. By a large margin, the internal pin-out configuration is more popular, but occasionally an application may call for the external pin configuration, offered in the UEP series.