Integrated high step-down multiphase buck converter with high power density

Author

Calabrese, Giacomo ; Granato, Maurizio ; Frattini, Giovanni ; Capineri, Lorenzo

Author_Institution

Dip.to di Ing. dell´Inf., Univ. degli Studi di Firenze, Florence, Italy

fYear

2014

fDate

26-28 Aug. 2014

Firstpage

1

Lastpage

10

Abstract

A novel integrated implementation of a high step-down multiphase buck for low voltage power supply is presented. The design and test chip measurements of a [10.8, 16]V to [0.65, 2]V, 2A, 10 MHz, 25.6 mW/mm², four-phases single-chip solution are presented with considerations on architecture, passive components, problems related to high frequency integration and relative improvements on power density with respect to previous solutions.

Keywords

power convertors; power supplies to apparatus; current 2 A; frequency 10 MHz; high power density; integrated high step down multiphase buck converter; low voltage power supply; voltage 0.65 V; voltage 10.8 V; voltage 16 V; voltage 2 V; Capacitors; Inductance; Inductors; Layout; Switches; Switching frequency; Topology; High frequency power converter; High power density systems; Integrated Circuit (IC); Switched-mode power supply; Voltage Regulator Modules (VRM);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on

Conference_Location

Lappeenranta

Type

conf

DOI

10.1109/EPE.2014.6910784

Filename

6910784