Development and mass production of thin film inductors for power circuits that achieve low loss and high current

· Compared to the previous product (TFM160808ALM 0.47μH), the DC resistance of the inductor is reduced by about 30% and the loss is low

· Low loss compared to previous products through the use of newly developed metallic magnetic materials

TDK Corporation has developed a thin film inductor TFM160808ALC series (outside dimensions: L1.6×W0.8×T0.8mm) that can reduce the DC resistance and have a high rated current.

Compared with the previous 0.47μH product, the DC resistance of this product is reduced by about 30%, and through the use of newly developed metal magnetic materials, lower loss product characteristics are achieved. Therefore, compared with the company's conventional products, this product has an output current of 10mA~

The efficiency in the range of 2.5A is increased by about 1%, which helps to improve power supply efficiency.

In recent years, with the multifunctionalization of smart phones and tablet terminals, the required power supply voltage also involves various specifications. Therefore, the number of inductors for power supply circuits is increasing. Inductors for power circuits require small sizes and support large currents, and require low losses in some devices that use batteries such as smartphones. By integrating the thin film technology cultivated in the magnetic head business and the material flow technology cultivated in passive components, and using TDK's unique conductor formation technology, metal magnetic materials are used as core materials and optimized product designs to achieve small size and low Loss, and can support large currents.

In the future, it will also expand the lineup of W2.0×L1.6(mm) and W2.0×L1.25(mm) sizes to further cope with a wide variety of equipment designs.

Relevant TDK TFM1608 series products

Author：Brittany Antonia （The author of article owns the copyright.）