The **LSMT2-3A561-R** refers to a high-current, surface-mount power inductor, typically manufactured by companies like **Laird Performance Materials**. These components are designed for high-frequency DC-DC converters and power supply modules. --- ### ## Technical Specifications Below are the typical electronic characteristics for the LSMT2-3A561-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.56 µH (560 nH) | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | ~1.1 mΩ (Typical) | | **Saturation Current (Isat)** | ~32A - 40A (depending on temp rise) | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | SMD (Surface Mount Device) | --- ### ### Key Features and Construction 1. **Molded Construction:** It uses a metal alloy powder core. This construction allows for high saturation currents and minimizes acoustic noise. 2. **Magnetic Shielding:** The part is magnetically shielded, which reduces electromagnetic interference (EMI) with neighboring components on the PCB. 3. **Low DCR:** The low direct current resistance ensures minimal power loss and high efficiency in high-current applications. --- ### ### Typical Applications * **Voltage Regulator Modules (VRM):** Used in CPU/GPU power delivery. * **DC-DC Converters:** High-frequency point-of-load (POL) converters. * **Battery Powered Devices:** Due to high efficiency and compact size. * **Server/Networking:** Robust power management for high-load data processing. --- ### ### Layout Recommendations When integrating this part into a circuit, consider the following: * **Thermal Vias:** Place copper pours and thermal vias under the inductor pads to dissipate heat. * **Keep-out Zones:** Keep high-speed signal traces away from the inductor to avoid noise coupling, even though it is shielded.