specifications subject to change without notice. 800.729.2099 tel www.icecomponents.com features ? designed for use with ikors 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 applications ? vrds (imbedded) ? vrms (module) ? pols ? vrm 10.x / vrm11 based designs. ? ddr2/3 memory electrical specifcations the icl 501-3 using ikors 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 high- current system vrm (svrm) applications where small size, high efficiency, and low total bom cost is critical. parameter test conditions min typ max unit turns radio (1 - 2) : (4 - 3) 1:1 - l s (1-2) 100mv @ 500 khz rms 350 500 650 nh l s (4-3) 100mv @ 500 khz rms 350 500 650 nh ll (1-2) short 4+3, 1.0 vrms @ 1 mhz 45 60 nh dcr (each winding) 0.3 m 1. electrical specifications at 25?c unless noted otherwise. 2. dc current, pcb layout, trace thickness and width, airflow, and proximity to other devices will affect inductor temerature rise. 3. operating temperature range: 0c to 100c. 4. meets ul 94v-0. icl501-3 vrd/pol inductor 26 (03/08) icl501-3-1
specifications subject to change without notice. 800.729.2099 tel www.icecomponents.com 7.5 ma x ikor icl501-3 yyw w dot f or pin 1 1.6 +/- 0.25 10 +/- 0.25 0.1 ma x fo r coplanarity 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 customers 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 customers 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. ? front v iew schematic top v iew side v iew layout 1 2 4 3 1.5 +/- 0. 1 11 .0 ma x 9.8 ma x 1 2 3 4 units: mm units: mm 5.3 +/- 0. 3 12 3 4 3.3 2.0 1.6 5.0 top view inductance vs. current dc current (3-4) inductance % (1-2) magnetizing inductance (1-2) vs. dc current applied (3-4) 0.0 20.0 40.0 60.0 80.0 100.0 120.0 0a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a icl501-3 vrd/pol inductor 27 (03/08) icl501-3-2
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