High power-density, surface mount inductors

September 24, 2014 // By Graham Prophet
In distribution from TTI, these miniature power inductors from Eaton claim to have the highest power density inductor solution currently available.

The SMT components also offer superior EMI shielding; the MPI power inductors are made of a composite magnetic core material and allow for soft roll-off inductance characteristics independent of temperature while maintaining high efficiency. The devices are suitable for space-constrained power supply designs for either filtering or high frequency switching operation up to 10 MHz. Amongst the main target applications are LED drivers, LCD displays, PLC/robot controllers, embedded PCs, handheld/mobile devices, portable media players, GPS systems, battery operated devices, notebooks/netbooks, tablet computers, PDAs, and POL converters.

The MPI4040 and MPI2520 series power inductors are magnetically shielded, can handle high transient inrush current spikes and have been designed for a maximum temperature of +125degC. MPI4040 series power inductors come in a 4.7 x 4.31 x 1.2 mm, 1.5mm, 1.85mm, or 2.0mm surface mount package, have an inductance range from 0.09 μH up to 22 μH, and current range from 1.1A up to 32.0A. The frequency range is 20 kHz up to 10 MHz.

MPI2520 series devices are in a 2.7 x 2.2 x 1.0 mm / 1.2mm surface mount package, offer an inductance range from 0.47 μH up to 10.0 μH, and a current range from 1.1A up to 4.8A.

TTI, www.ttieurope.com