ICE ICL451-1

Voice:800.729.2099
Fax: 678.560.9304
ICE Components, Inc.
4-phase VRD/POL Inductor
[email protected]
www.icecomponents.com
ICL451-1
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 ICL451-1, 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 ICL451-1 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 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
Min
Typ
1.0 Vrms @ 500 kHz
264
330
1.0 Vrms @ 500 kHz
45
Max
Unit
396
nH
53
nH
Inductor Assembly Electrical Specifications
Parameter
Test Conditions
Min
Typ
Ls (1-3)
Ls (2-5)
1.0 Vrms @ 500 kHz
528
660
792
nH
1.0 Vrms @ 500 kHz
528
660
792
nH
Ls (4-7)
Ls (6-8)
1.0 Vrms @ 500 kHz
528
660
792
nH
1.0 Vrms @ 500 kHz
528
660
792
nH
25° C
25° C
25° C
25° C
.387
.43
.477
.53
.477
.53
.387
.43
.473
.583
.583
.473
mΩ
mΩ
mΩ
mΩ
DCR (1-3)
DCR (2-5)
DCR (4-7)
DCR (6-8)
Specifications subject to change without notice.
Electrical specifications at 25˚C unless noted otherwise.
Max
Unit
(08/07) ICL451-1-1
Voice:800.729.2099
Fax: 678.560.9304
ICE Components, Inc.
[email protected]
www.icecomponents.com
VRD/POL Inductor
•
ICL451-1
Inductor Assembly
units: mm
Front View
Top View
50.8 +/- 0.254
IKOR
10.2 +/- 0.254
ICL451-1
YYWW
1
8
8.89
5.08
dia 1.3(x8)
21.59
Side View
Schematic
1 0 .1 6 + /-0 .2 5
1
1
3
2
8.5 max
5
4
2
5.08(x4)
3
4
5
6
7
8
7.62(x3)
7
6
6.1
•
Layout
8
Single Inductor
units: mm
Application Schematic
PHASE 1
1
PHASE 2
4
PHASE 3
5
SINGLE
INDUCTOR
PHASE 4
3
VOUT
2
7
8
6
The technology utilized in conjunction with the coupled inductor (“the CL”) described in this data sheet includes intellectual property
(the “IP”) owned by iWatt, Inc. and is covered by one or more of the following U.S. patents: 6,545,450; 6,686,727; 6,696,823. In connection with the end customer’s purchase of the CL from “ICE Components, Inc.”, the end customer is hereby granted a non-exclusive,
worldwide, royalty-free license (without rights to sublicense) to use and incorporate the IP in the end customer’s product that also
incorporates the CL. In no way does this license extend to customer end products which do not incorporate the CL to implement the IP.
(08/07) ICL451-1-2