CMOS DC to DC switched converter with On Chip inductors

Author

Shapira, Shye ; Unikovski, Aharon ; Peled, Gabi ; Cristea, David ; Rotman, Eyal ; Eshkoli, Ayal ; Svetlitza, Alexander ; Nemirovsky, Yael

Author_Institution

TowerJazz, MigdalHaemek, Haifa, Israel

fYear

2012

fDate

3-7 June 2012

Firstpage

69

Lastpage

72

Abstract

We report here a study on a monolithic buck converter power IC with on-chip ferrite core inductors. The power IC is designed and fabricated with a standard 0.18μm CMOS process. On-chip inductor with ferrite core is used as the filter inductor in the buck converter. A 0.6-1.2W prototype system in package (SiP) buck converter is designed to operate at frequencies up to 10MHz.

Keywords

CMOS integrated circuits; DC-DC power convertors; ferrites; inductors; integrated circuit design; integrated circuit manufacture; power filters; power integrated circuits; switching convertors; CMOS DC to DC switched converter; SiP; filter inductor; frequency 10 MHz; monolithic buck converter power IC; on chip inductors; on-chip ferrite core inductors; power 0.6 W to 1.2 W; size 0.18 mum; system in package buck converter; Eddy currents; Ferrites; Frequency measurement; Inductance; Inductors; Magnetic cores; Magnetic hysteresis; DC-DC buck converter; core losses; ferrites; frequency dependence of core resistance; inductors; power management integrated circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Semiconductor Devices and ICs (ISPSD), 2012 24th International Symposium on

Conference_Location

Bruges

ISSN

1943-653X

Print_ISBN

978-1-4577-1594-5

Electronic_ISBN

1943-653X

Type

conf

DOI

10.1109/ISPSD.2012.6229025

Filename

6229025