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ICE Components, Inc.
Voice: 800.729.2099 Fax: 678.560.9304
cust.serv@icecomp.com www.icecomponents.com
VRD/POL Inductor
Features
* Designed 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 * Robust SMD package is compatible with SMT assembly process handling * Provides increase in VR efficiency compared to ICL501-1
ICL501-3
Applications
* VRDs (Imbedded) * VRMs (Module) * POLs * VRM 10.x / VRM11 based designs. * DDR2/3 memory
The ICL 501-3 using IKOR's coupled inductor technology solves the most pressing problem facing IA-32 VRDs and VRMs. This patented technology solves the trade-off between efficiencyand 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 ICL501-3 coupled inductor can be used in both VRD and module VRM applications. Its small size and low height make it possible to design high-density VRMs and to fit the inductors very close to the CPU socket in VRD applications. This device can also be used in highcurrent System VRM (SVRM) applications where small size, high efficiency, and low total BOM cost is critical.
Electrical Specifications Parameter Turns Radio (1 - 2) : (4 - 3) Ls (1-2) Ls (4-3) LL (1-2)
DCR (each winding)
Electrical specifications at 25C unless noted otherwise.
Test Conditions
100mV @ 500 kHz rms 100mV @ 500 kHz rms short 4+3, 1.0 Vrms @ 1 MHz
Min
350 350 45
Typ
500 500
Max 1:1
650 650 60 0.3
Unit nH nH nH m
Specifications subject to change without notice.
(7/07) ICL501-3-1
ICE Components, Inc.
Voice: 800.729.2099 Fax: 678.560.9304
cust.serv@icecomp.com www.icecomponents.com
VRD/POL Inductor
*
Front View
ICL501-3
Schematic
Dot for pin 1
IKOR
ICL501-3 YYWW
7.5 MAX
1
4
1.6 +/- 0.25 0.1 max for coplanarity
2
3
*
10 +/- 0.25
Top View
9.8 MAX
units: mm
Side View
4
3 2
11.0 MAX
1 1.5 +/- 0.1
5.3 +/- 0.3
*
units: mm
Layout
3.3 2.0
4 1 5.0
3 2
1.6 TOP VIEW
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.
(7/07) ICL501-3-2

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