The **LP5035R-R15M** is a high-current, low-profile power inductor typically used in DC-DC converter applications. It belongs to a class of surface-mount (SMD) power inductors designed for high-frequency efficiency and high current handling. --- ### 1. Part Number Breakdown The nomenclature usually follows this structure: | Code Segment | Meaning | Details | | :--- | :--- | :--- | | **LP** | Series Prefix | Low Profile / High Current series | | **5035R** | Dimensions | Approx. 5.0mm x 5.0mm x 3.5mm | | **R15** | Inductance Value | 0.15 µH (Microhenries) | | **M** | Tolerance | ±20% | --- ### 2. Technical Specifications Below are the typical electrical characteristics for this specific component: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.15 µH | | **Tolerance** | ±20% | | **DCR (Direct Current Resistance)** | Extremely low (typically < 2 mΩ) | | **Isat (Saturation Current)** | Very high (often > 25A - 40A range) | | **Irms (Heating Current)** | High thermal capacity for continuous load | | **Operating Temperature** | -40°C to +125°C (including self-heating) | --- ### 3. Key Features * **Molded Construction:** Uses a metal alloy powder core which provides soft saturation characteristics (the inductance doesn't drop off sharply when current increases). * **Shielded Design:** Magnetic shielding minimizes EMI (Electromagnetic Interference), making it suitable for high-density PCB layouts. * **Low DCR:** The use of flat wire or heavy gauge copper minimizes power loss and heat generation. * **High Frequency:** Optimized for switching frequencies ranging from 500 kHz to over 5 MHz. --- ### 4. Applications This part is commonly found in power management stages for: 1. **Voltage Regulator Modules (VRMs):** Powering CPUs and GPUs in laptops and servers. 2. **Point of Load (PoL) Converters:** Converting a main bus voltage (e.g., 12V) down to lower voltages (1.0V, 1.8V). 3. **Battery Powered Devices:** High-efficiency power stages for mobile hardware. 4. **Automotive Electronics:** Infotainment and ADAS systems (if AEC-Q200 qualified). ---