Topology comparison and design optimisation of the buck converter and the single-inductor dual-output converter for system-in-package in 65nm CMOS

F Haizoune, HJ Bergveld, J Popovi¿-Gerber, JA Ferreira

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    7 Citations (Scopus)

    Abstract

    Abstract Portable electronic devices, such as laptop computers and personal portable electronic devices are battery-powered and need power-electronics converters as an interface between the battery and the load. To ensure a long battery life, it is important that the power-electronic converters operate at high efficiency. The volume available for power electronics is limited which necessitates the use of integration technologies to achieve high-power-density converters. Integrating passive components in silicon makes monolithic integration of power converters in system-on-chip difficult and hybrid integration in the form of system-in-package where passive components are implemented in alternative technologies and integrated in the package seems to be a more feasible option at present. High operating frequencies, necessary for the reduction of the passive components size results in the increase of switching losses in the power semiconductors which negatively influences the efficiency. Furthermore, power semiconductor losses are directly dependent on the chip size which in turn influences the cost of the converter. Also, the losses are dependent on the time waveforms of electrical currents and voltages which in turn depend on the chosen circuit topology. The paper presents a topology comparison and a design optimization procedure for the implementation of a DC-DC converter (Vin 3 V- 4.2 V from Li-ion battery, Vout 0.6V-1.2 V, load current
    Original languageUndefined/Unknown
    Title of host publicationProceedings IEEE 6th International Power Electronics and Motion Control Conference, 2009. IPEMC '09
    Editors s.n.
    Place of PublicationPiscataway
    PublisherIEEE Society
    Pages295-301
    Number of pages7
    ISBN (Print)978-1-4244-3556-2
    DOIs
    Publication statusPublished - 2009
    EventPower Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International, Wuhan, China - Piscataway
    Duration: 17 May 200920 May 2009

    Publication series

    Name
    PublisherIEEE

    Conference

    ConferencePower Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International, Wuhan, China
    Period17/05/0920/05/09

    Keywords

    • conference contrib. refereed
    • Conf.proc. > 3 pag

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