Samsung Electro-Mechanics Power Inductors

Power inductors are used for the purpose of smoothing in PM (Power Management) ICs and DC-DC converters that require high-rated current and low RDC (Resistance). SEMCO owns a product lineup of low-current multilayer-type inductors, high-current/high-ef ficiency HEPI (High Efficiency Power Inductors) and high current/high capacity winding-type inductors. General Features Use of metal composite that has less power consumption Magnetically shielded structure Free of all RoHS-regulated substances Monolithic structure for high reliability Application Smartphones DC-DC converters for DSC, DVC, PDA, and others Why Samsung Classification of Power Inductors Depending on the body materials, power inductors are divided into ferrite inductors and metal composite inductors. The metal composite inductors are high in rated current and superb in efficiency. Characteristics of Metal Magnet Thin Film Type Materials with lower core loss and internal electrodes (coils) with a higher A/R ratio are used. These products show high-efficiency characteristics and have very high characteristics of rated current (DC-bias) compared with multilayer-type products. [ Metal Composite Power Inductor : CIGT Series(Thin Film Type) ] Characteristics of Metal Magnet Winding Type Metal magnet winding-type inductors have high-efficiency and high-current (DC-bias) characteristics due to their optimal body material composition and coil. These inductors are recognized for their high capacity (4.7 μH). Superb Efficiency Characteristics If the power inductor efficiency is low, battery consumption increases. Efficiency test results show that power inductors are superior to ferrite winding-type inductors in terms of efficiency. Samsung has continuously developed and launched metal magnet power inductors with improved efficiency. 0806 HM 0603 UM Size(mm) 0806(2016) 0603(1608) Height 1.0mm 1.0mm L(nominal) 0.24 uH 0.24 uH DC Resistance Typ 17mΩ 28mΩ Rated Current △L=30% Typ 5.3A 3.8A Rated Current △T=40℃ Typ 4.5A 3.3A Switching - 3~9.6MHz Remark MP Sample Available Sectional View Winding Type Winding-type inductors are made by winding coils in “α” shape and the surrounding magnet around them. Thin Film Type Thin film–type inductors are made by plating coils on substrates and surrounding them with magnets. Multilayer Type Multilayer-type inductors are made by printing electrodes on magnet sheets and stacking the layers of magnet sheets. Magnet sheet covers are placed on the top and bottom