The **LP5050R-R68M** is a high-performance, surface-mount (SMD) power inductor. It is commonly used in DC-DC converters and power management circuits due to its compact size and high current handling capabilities. ### 1. Part Number Breakdown Understanding the nomenclature helps identify its core specifications: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **LP** | Series Prefix | Low Profile / Power Inductor series | | **5050** | Case Size | Approx. 5.0mm x 5.0mm footprint | | **R68** | Inductance Value | 0.68 µH (Microhenries) | | **M** | Tolerance | ±20% | --- ### 2. Technical Specifications While exact values can vary slightly by manufacturer (e.g., Link-PP or others), the general characteristics for a **0.68µH 5050 size** inductor are: * **Inductance:** 0.68 µH * **DC Resistance (DCR):** Typically very low (approx. 10mΩ to 25mΩ) to minimize power loss. * **Saturation Current (Isat):** Usually ranges between **6A to 12A** (The point where inductance drops by 30%). * **RMS Current (Irms):** Usually ranges between **5A to 10A** (Based on temperature rise, typically ΔT=40°C). * **Operating Temperature:** -40°C to +125°C (including self-heating). --- ### 3. Key Features * **Shielded Construction:** Most 5050 series inductors are magnetically shielded to reduce Electromagnetic Interference (EMI), making them safe for high-density PCB layouts. * **High Power Density:** Large current capacity relative to its small 5x5mm footprint. * **Low Core Loss:** Optimized for high-frequency switching power supplies. --- ### 4. Common Applications These components are integral to modern electronics that require stable voltage regulation: 1. **DC/DC Converters:** Used as energy storage elements in Buck (Step-down) or Boost (Step-up) converters. 2. **Motherboards & GPUs:** Filtering and power regulation for CPUs and graphics processors. 3. **Portable Electronics:** Tablets, laptops, and SSDs where space is limited but power demand is high. 4. **LED Drivers:** Providing constant current for lighting applications. --- ### 5. Footprint Example (Typical) ```text Dimensions: L: 5.0mm ± 0.3mm W: 5.0mm ± 0.3mm H: 2.0mm to 5.0mm (Depending on specific "R" height variant) ```