Linear Tech's LTM8073 silent switcher regulator can safely operate from unregulated or fluctuating 24 V to 48 V input supplies in noisy environments such as communication infrastructure, factory automation, industrial robotics, and avionic systems. The Silent Switcher architecture minimizes EMC/EMI emissions, enabling the LTM8073 to pass CISPR 22 Class B for use in signal processing applications, including imaging and RF systems.

With one resistor from 0.8 V to 15 V, the output voltage can be adjusted. The wide output range allows for versatility, as one product can be used to generate common system bus voltage of 3.3 V, 5.0 V, 12 V, and 15 V. Without a heat sink or airflow, the LTM8073 delivers 3 A of output current up to +85°C ambient. Also, with its share pin for current sharing, it can operate in parallel to deliver more current.

The LTM8073 which contains a switching regulator controller, power switches, inductor, and other support components fit all in a 6.25 mm x 9.0 mm x 3.32 mm BGA package. To complete the design, only the bulk input and output capacitors and a few small resistors are required.