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ICL351-LS
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3-phase VRD/POL Inductor
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 Product Datasheet |
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FEATURES
• Design for use with IDT’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 |
APPLICATIONS
• VRDs (Imbedded)
• VRMs (Module)
• POLs
• VRM 10.x / VRM11 based designs
• DDR2/3 memory |
PACKAGING
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The ICL351-LS, a 3-phase inductor assembly using IDT’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 ICL351-LS 3-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.
Inductor Assembly Electrical Specifications
| Parameter |
Test Conditions |
Min |
Typ |
Max |
Unit |
| Ls (1-6) |
1.0 Vrms @ 500 kHz |
471 |
589 |
707 |
nH |
| Ls (2-3) |
1.0 Vrms @ 500 |
471 |
589 |
707 |
nH |
| Ls (4-5) |
1.0 Vrms @ 500 kHz |
471 |
589 |
707 |
nH |
| LL (1-6) short 2,3 |
1.0 Vrms @ 1 mHz |
384 |
480 |
576 |
nH |
| LL (1-6) short 4,5 |
1.0 Vrms @ 1 mHz |
384 |
480 |
576 |
nH |
| LL (2-3) short 4,5 |
1.0 Vrms @ 1 mHz |
379 |
474 |
569 |
nH |
| DCR (1-6) |
25° C |
1.06 |
1.18 |
1.3 |
mΩ |
| DCR (2-3) |
25° C |
0.61 |
0.68 |
0.75 |
mΩ |
| DCR (4-5) |
25° C |
0.61 |
0.68 |
0.75 |
mΩ | |
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Part
Number
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Order
FREE SAMPLES
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| ICL351-LS |
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