The expanded line LXDC line of micro DC/DC converters from Murata Americas utilizes a unique ferrite substrate to embed the power inductor. The company combined a number of its proprietary materials and technical capabilities (specifically ferrite material expertise, multilayer processing, and power module design) to develop the 55 F and 55 K additions to the product line that deliver ultra-compact size and superior EMI noise suppression. The micro DC-DC converter is ideally suited for applications that require a miniaturized footprint. Target uses include cellular phones, personal digital assistants (PDAs), mobile internet devices, digital cameras, eBooks, tablets, wireless LAN, Bluetooth, portable game consoles, music players, base station, and 12V AC/DC adaptors.
A key feature of this embedded structure is that the IC can be mounted directly above the power inductor coil with almost no pattern length to diminish leakage radiation noise. The new LXDC55KAAA-205 (5.7 x 5.0 x 2.1 mm) allows for more versatility in distributed power architectures. In addition to better EMI noise suppression and a smaller size, it also provides an adjustable output voltage between 0.8 and 3.6 volts. Further, up to 3A can be delivered with input voltages ranging from 2.7-5.5 V.
Samples of the LXDC series samples are available for $3.00 (in quantity) with an approximate lead time of 14 weeks.