<P>The Aim-TTi PL601-P achieves an exceptional power density for a linear regulated power supply by offering up to 90W from a ¼ rack 3U sized casing. This gives it an unusually small bench footprint taking up less space on a crowded bench. For rack-mount application, up to four units can be mounted into a single slot.</P><P>Despite its small size and linear regulation, the Aim-TTi PL601-P generates relatively little heat through the use of an advanced phase controlled pre-regulator. This gives it significantly higher energy efficiency than conventional linear regulated designs, particularly when supplying lower voltages.</P><P>The internal heat-sinks use fan-assisted convection cooling in order to remove the heat with minimal fan noise.</P><P>To meet the varying needs of todays engineers, the Aim-TTi PL601-P has a comprehensive array of interfaces is provided. RS-232, USB and LAN (Ethernet) with LXI support are provided as standard. An additional GPIB interface is also optionally available.</P><P>Each of the digital bus interfaces provides full control of voltage, current, and output on/off, plus read-back of voltage, current and status. The interfaces are at ground potential and are opto-isolated from the output terminals.</P>