## Technical Overview of TLVR1105T-R17Y The **TLVR1105T-R17Y** is a specialized high-current inductor designed for **Trans-Inductor Voltage Regulator (TLVR)** architectures. These components are primarily used in multi-phase voltage regulators for high-performance computing environments (AI servers, data centers, and ASICs). ### 1. Key Specifications | Parameter | Specification | | :--- | :--- | | **Inductance ($L_o$)** | 170 nH (0.17 µH) | | **Tolerance** | ±10% or ±20% (depending on specific binning) | | **Saturation Current ($I_{sat}$)** | ~60A to 100A (High current density) | | **DCR (DC Resistance)** | Extremely low (typically < 0.20 mΩ) | | **Package Size** | ~11.0mm x 5.0mm x 5.0mm | | **Architecture** | Dual-winding (Primary and Secondary/Coupling) | --- ### 2. Functional Description Unlike standard power inductors, the TLVR inductor features an additional **coupling winding**. This allows multiple phases of a power converter to be linked together through a "compensation" or "coupling" loop. #### Core Benefits: * **Transient Response:** By coupling the phases, the system can respond to sudden load changes (Current Steps) much faster than traditional multi-phase designs. * **Reduced Output Capacitance:** Because the transient response is faster, the board requires fewer bulk output capacitors, saving space and cost. * **Efficiency:** Designed for high switching frequencies and very low conduction losses (DCR). --- ### 3. Application Circuitry In a TLVR system, the primary windings are connected to the switching nodes of the buck converter phases, while the secondary windings are wired in a series loop with an additional **Lc (Compensating Inductor)**. ```mermaid graph LR PWM_Signal --> Phase1_TLVR PWM_Signal --> Phase2_TLVR Phase1_TLVR -- Secondary Loop --> Lc_Inductor Phase2_TLVR -- Secondary Loop --> Lc_Inductor ``` --- ### 4. Typical Use Cases * **AI Accelerators:** Powering GPUs (NVIDIA/AMD) and TPUs. * **Data Center CPUs:** High-core-count processors requiring 300A+ of current. * **High-End FPGAs:** Applications requiring tight voltage regulation under extreme load steps. ---