Switchmode regulator

Linear Technology has introduced the LTM8021, a complete DC/DC uModule regulator point-of-load system with onboard inductor and power components in a package that resembles a surface-mount IC.

The device operates from input supplies from 3 to 36 V (40 V max) and delivers up to 500 mA. Its footprint (6.25 x 11.25 mm), low profile (2.8 mm) and light weight (0.49 g) enables system designers to solder the device on the backside of the circuit board.

The module includes a DC/DC controller IC, power switch, inductor, compensation circuitry and input and output bypass capacitors. Its design is as simple as a linear regulator and has the advantage of less heat dissipation and smaller size.

It regulates an output voltage from 0.8 to 5 that is adjusted with only one resistor. Encapsulated packaging protects the circuit components against mechanical, chemical and ambient factors, improving reliability.