ICL411-3 参数 Datasheet PDF下载

ICL411-3

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 ICL411-3, a 4-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 ICL411-3 4-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

L

s

LL

Test Conditions

1.0 Vrms @ 500 kHz

1.0 Vrms @ 500 kHz

Min

260

90

Typ

325

100

Max

390

110

Unit

nH

nH

Inductor Assembly Electrical Specifications

Parameter

L

s

(1-3)

L

s

(2-5)

L

s

(4-7)

L

s

(6-8)

DCR (1-3)

DCR (2-5)

DCR (4-7)

DCR (6-8)

Electrical specifications at 25˚C unless noted otherwise.

Test Conditions

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

Min

520

520

520

520

.387

.477

.477

.387

Typ

650

650

650

650

.43

.53

.53

.43

Max

780

780

780

780

.473

.583

.583

.473

Unit

nH

nH

nH

nH

m

Ω

m

Ω

m

Ω

m

Ω

Specifications subject to change without notice.

800.729.2099 tel

www.icecomponents.com

18

(03/08) ICL411-3-1