The **LP5035R-R56M** is a high-current, surface-mount (SMD) power inductor commonly used in DC-DC converters and power management modules. Below is a detailed breakdown of its technical specifications and characteristics. --- ### 1. Key Technical Specifications The part number follows a standard nomenclature used by manufacturers (like Coilcraft or Cyntec) to define its physical size and electrical properties. | Parameter | Specification | Description | | :--- | :--- | :--- | | **Inductance** | 0.56 µH (R56) | The energy storage capacity. | | **Tolerance** | ±20% (M) | Variance from the nominal inductance. | | **DC Resistance (DCR)** | ~1.5 - 3.0 mΩ | Determines power loss via heat. | | **Saturation Current ($I_{sat}$)** | ~25A - 35A | Current at which inductance drops by 30%. | | **RMS Current ($I_{rms}$)** | ~20A - 28A | Current causing a 40°C temperature rise. | | **Footprint Size** | 5.0 x 5.0 mm | Approximate physical dimensions. | | **Height** | 3.5 mm | The "35" in the part number indicates height. | --- ### 2. Part Number Breakdown Understanding the code helps in identifying replacements or similar parts: * **LP**: Series prefix (often denotes Low Profile or High Power). * **5035**: Dimensions (5.0mm x 5.0mm base, 3.5mm height). * **R**: Shielding/Material type (usually molded iron powder). * **R56**: Inductance value ($R = \text{decimal point}$), so $0.56\mu H$. * **M**: Tolerance code ($M = \pm 20\%$). --- ### 3. Core Features & Construction 1. **Molded Construction**: It is likely a "shielded" inductor made from metallic iron powder pressed around the coil. This minimizes EMI (Electromagnetic Interference) and prevents noise from affecting surrounding components. 2. **Soft Saturation**: Unlike ferrite cores that lose inductance sharply, this part usually features a gradual saturation curve, making it more stable under transient load spikes. 3. **High Frequency**: Optimized for high-frequency switching regulators (typically 500kHz to 5MHz). --- ### 4. Typical Applications This component is found in high-efficiency power stages where space is limited but current demand is high: * **GPU/CPU Power Rails**: Voltage Regulator Modules (VRMs). * **Telecom**: High-density DC-DC converters. * **Consumer Electronics**: High-end laptops and tablets. * **Automotive**: Infotainment and ADAS power supplies (if AEC-Q200 qualified). ---