ICL551-1 데이터시트 PDF

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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 cur-

rent 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

Parameter

Ls (1-3)

Ls (2-5)

Ls (4-7)

Ls (6-9)

Ls (8-10)

DCR (1-3)

DCR (2-5)

DCR (4-7)

DCR (6-9)

DCR (8-10)

Test Conditions

1.0 Vrms @ 500 kHz

1.0 Vrms @ 500 kHz

1.0 Vrms @ 500 kHz

1.0 Vrms @ 500 kHz

1.0 Vrms @ 500 kHz

25° C

25° C

25° C

25° C

25° C

Min Typ

264 330

45

Max

396

53

Unit

nH

nH

Min Typ Max Unit

528 660

528 660

792 nH

792 nH

528 660

528 660

528 660

792 nH

792 nH

792 nH

.387 .43

.477 .53

.477 .53

.477 .53

.387 .43

.473 mΩ

.583 mΩ

.583 mΩ

.583 mΩ

.473 mΩ

Specifications subject to change without notice.

800.729.2099 tel

www.icecomponents.com

28

(03/08) ICL551-1-1

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