The **FP1006R2-R22-R** is a high-performance, high-frequency power inductor manufactured by **Eaton (formerly Cooper Bussmann/Coiltronics)**. It is part of the FP1006 series, specifically designed for multi-phase voltage regulator modules (VRMs). --- ### 1. Component Overview The FP1006R2-R22-R is a "flat-pac" inductor known for its very low DCR (Direct Current Resistance) and high saturation current capabilities. | Feature | Specification | | :--- | :--- | | **Inductance** | 0.22 µH (220 nH) | | **Tolerance** | ±10% | | **DC Resistance (DCR)** | 0.26 mΩ (Typical) | | **Saturation Current ($I_{sat}$)** | 85 A | | **RMS Current ($I_{rms}$)** | 53 A | | **Operating Temperature** | -40°C to +125°C | | **Dimensions** | 10.2 x 6.4 x 6.0 mm | --- ### 2. Key Characteristics * **High Frequency Performance:** Optimized for switching frequencies up to 2 MHz. * **Low Core Loss:** Uses a specialized ferrite core material that minimizes energy loss during high-speed switching. * **High Current Density:** The "R2" designation indicates a specific mechanical and electrical design iteration optimized for modern server and workstation CPUs. * **Tight Footprint:** The vertical "Flat-Pac" design allows for high power density on crowded Printed Circuit Boards (PCBs). --- ### 3. Application Use Cases This specific part is typically found in high-demand computing environments: 1. **Server & Workstations:** Used in VRMs to step down voltage for high-end processors (CPUs) and GPUs. 2. **Point of Load (POL) Converters:** For localized power regulation on complex motherboards. 3. **Data Centers:** Distributed power systems where efficiency and heat management are critical. 4. **FPGA Powering:** Providing the stable, high-current low-voltage rails required by large FPGAs. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying variants: | Segment | Meaning | | :--- | :--- | | **FP1006** | Product Series (Dimensions roughly 10x6mm) | | **R2** | Design Revision / Version | | **R22** | Inductance Value (R22 = 0.22 µH) | | **-R** | RoHS Compliant / Lead-Free | --- ### 5. Implementation Example In a standard synchronous buck converter circuit, the FP1006R2-R22-R acts as the energy storage element: ```text Input Voltage (Vin) --> [High-Side MOSFET] --+-- [FP1006R2 Inductor] --> Vout | [Low-Side MOSFET] | GND ``` ---