P78-2000-S Non-Isolated DC-DC Converters v The P78-2000-S series offers output short-circuit protection, and the SIP package is pin-out compatible with LM78XX three-terminal linear regulators. The black case material has flame-retardant, heat-resistant plastic construction. CUI Inc P78-2000-S Non-Isolated DC-DC Converters offer a no-load input current as low as 0.1mA and operate in a temperature range of -40°C to +85°C.