expanded R-78B series now offers a 2-A on-board power supply. The switching
regulators can reach efficiencies up to 96% without heat sinks. The series
provides a power density of up to 17.5 W/cm³ in an SIP3 housing measuring 11.5 x 8.5 x
17.5 mm.


The switching regulator series are suited to
replace 78xx linear regulators and are also pin compatible with linear
regulators in TO-220 packages. The series offers a broad spectrum of output
voltages spanning from 1.2 to 15 Vdc and input voltages up to 32 Vdc. At 96%
efficiency, very little energy is lost through heat. Up to 30 W of power are
provided over a temperature range from –40°C to 70°C without the need for
heatsinks. Its output regulation protects against any sudden change in input
voltage and keeps interference levels low and output voltage stable. The
L-Version with 90° pins allows direct replacement for horizontally mounted
regulators in which component height is critical. A short-circuit protection,
low ripple and noise figures, and a 50-mA input current under short-circuit
conditions round off the specifications of this versatile converter series. All
modules are certified to IEC/EN62368-1 and EN55022 with a CB report and come
with a three-year warranty.