Taiyo Yuden Releases Power Inductors For DC-DC Converter Choke Coils
Taiyo Yuden (U.S.A.) Inc. announced its new CKP2520 multilayer chip power inductors, which the company claims achieve better performance compared to its previous CKP series parts. The -2R2 part, for example, offers DC resistance and rated current improvements of 35% and 44%, respectively. With an EIA 1008 case size footprint of 2.5 x 2.0mm and a maximum height of only 1.0mm, CKP2520 devices are said to facilitate the design of thinner, higher-performance, multifunction cell phones, digital cameras and other battery-powered ultra-portable electronic equipment.
According to the company, the continuing miniaturization trend in the feature-rich portable device market is driving the need for smaller, thinner choke coils and multiple dc-dc converters. In response, refinements to Taiyo Yuden’s material science techniques generated component structural improvements that resulted in significant performance increases relative to case size.
Tighter electromagnetic field control and a proprietary new internal-electrode printing process that doubled the thickness of the internal conductor resulted in dramatically lower dc resistance (RDC) and higher current ratings. New additions to the CKP2520 series, now under development, are expected to result in further performance gains in the 1008 and smaller case sizes.
The series devices offer a range of inductance values and current ratings from 1.0 to 4.7µH and 1.4 to 1.1A, respectively. Sample pricing is $0.20 each, with a delivery time of two weeks ARO.
