ICL551-1

ICL551-1 5-Phase VRD/POL Inductor Applications VRDs (Imbedded) VRMs (Module) POLs VRM 10.x / VRM11 based designs DDR2/3 memory Features Design for use with IKOR’s proprietary coupled inductor multi-phase DC-DC converter topology Low height and small size allows use in both imbedded (VRD) and module (VRM) applications Integrated design lowers cost and simplifies assembly The ICL551-1, a 5-phase inductor assembly using IKOR’s coupled inductor technology, solves the most pressing problem facing IA-32 VRDs. This patented technology solves the trade-off between efficiency and elimination of bulk capacitors by dramatically lowering the VRM output inductance while using industry-standard components and relatively low switching frequencies. This technology provides superior transient response performance to higher frequency solutions due to the unique method of coupling between phases, and enables high-current designs with little or no electrolytic output bypass capacitance. The ICL551-1 5-phase coupled inductor assembly is designed for VRD applications. Its integrated design allows it to fit the inductors very close to the CPU socket in VRD applications. This device can also be used in high current System VRM (SVRM) applications where small size, high efficiency, and low total BOM cost is critical. Single Inductor Electrical Specifications Parameter Ls LL Test Conditions 1.0 Vrms @ 500 kHz 1.0 Vrms @ 500 kHz Inductor Assembly Electrical Specifications Paramete...