## LPS5030 Series: Electronic Components Overview The **LPS5030** is a specific series of high-performance, shielded power inductors manufactured by **Coilcraft**. These components are widely used in DC-DC converters and power management circuits where board space is limited but high efficiency is required. --- ### 1. Key Technical Specifications The "5030" designation refers to the physical dimensions: approximately **5.0 mm x 5.0 mm** with a height of **3.0 mm**. | Parameter | Typical Range / Value | |:---|:---| | **Inductance Range** | 0.90 µH to 4700 µH | | **Current Handling (Isat)** | Up to 4.2 Amps (varies by inductance) | | **DCR (DC Resistance)** | Low (starting from ~0.040 Ohms) | | **Shielding** | Magnetically Shielded (Low EMI) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Internal Construction & Design The LPS5030 is engineered as a **wire-wound inductor** with specific design features: * **Magnetic Shielding:** The coil is enclosed in a ferrite-plastic compound. This prevents magnetic flux from escaping, reducing interference with nearby components (EMI). * **Small Footprint:** It is designed for Surface Mount Technology (SMT) with a square base, providing high stability during the soldering process. * **Low DCR:** It utilizes high-quality copper windings to minimize power loss through heat, which is critical for battery-powered devices. --- ### 3. Core Functionality As an electronic part, the LPS5030 performs three primary roles in a circuit: 1. **Energy Storage:** In switching regulators (Buck/Boost), it stores energy in its magnetic field during the "ON" cycle and releases it during the "OFF" cycle. 2. **Filtering:** It blocks high-frequency AC noise while allowing DC to pass, smoothing out voltage ripples. 3. **Current Regulation:** It resists sudden changes in current, protecting sensitive downstream components. --- ### 4. Common Applications Due to its low profile and high current capacity, you will find the LPS5030 in: * **Handheld Electronics:** Smartphones, tablets, and GPS units. * **DC-DC Converters:** Point-of-load (POL) power supplies. * **LED Drivers:** Providing constant current for lighting displays. * **Portable Medical Devices:** Where compact size and reliability are paramount. --- ### 5. Identification Example When looking at a part number like **LPS5030-103MLC**: * **LPS:** Series name (Low Profile Shielded). * **5030:** Size (5.0 x 5.0 x 3.0 mm). * **103:** Inductance value ($10 \times 10^3$ nH = 10 µH). * **M:** Tolerance (typically ±20%).