Power modules integrate buck converter and power circuitry in compact package

Mouser now stocks the LMZM33602 and LMZM33603 power modules from Texas Instruments. These integrated 4V–36V power module solutions blend a step-down DC-to-DC converter with power MOSFETs, a shielded inductor, and passive components in a compact, low-profile package. To simplify design and offer easier use, the power modules need as few as four external components and allow engineers to remove the loop compensation and magnetics part selection from the design process. The power modules are 2A or 3 A synchronous step-down DC-DC converters. The LMZM33602 provides an output voltage range from 1V to 18V at 2A, whereas the output voltage range of the LMZM33603 is 1V to 13.5V at 3A. Both converters enable synchronisation to an external clock and highlight an adjustable switching frequency from 200kHz to 1.2MHz. The switching frequency can also be altered by an external resistor or a sync signal, which provides the solution to accommodate a variety of input and output voltage conditions as well as optimise efficiency up to 95%. Target applications for the power modules include industrial, medical, defence, factory and building automation, smart grid and energy, and inverted output applications.