A 0.35μm 50V CMOS Sliding-Mode Control IC for Buck Converters

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

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A 0.35μm 50V CMOS Sliding-Mode Control IC for Buck Converters. / Høyerby, Mikkel Christian Wendelboe; Andersen, Michael Andreas E.; Andreani, Pietro.

ESSCIRC 2007. 2007.

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

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Author

Høyerby, Mikkel Christian Wendelboe; Andersen, Michael Andreas E.; Andreani, Pietro / A 0.35μm 50V CMOS Sliding-Mode Control IC for Buck Converters.

ESSCIRC 2007. 2007.

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

Bibtex

@inbook{c391c33588324e10a106869b6dfa8778,
title = "A 0.35μm 50V CMOS Sliding-Mode Control IC for Buck Converters",
author = "Høyerby, {Mikkel Christian Wendelboe} and Andersen, {Michael Andreas E.} and Pietro Andreani",
year = "2007",
booktitle = "ESSCIRC 2007",

}

RIS

TY - GEN

T1 - A 0.35μm 50V CMOS Sliding-Mode Control IC for Buck Converters

A1 - Høyerby,Mikkel Christian Wendelboe

A1 - Andersen,Michael Andreas E.

A1 - Andreani,Pietro

AU - Høyerby,Mikkel Christian Wendelboe

AU - Andersen,Michael Andreas E.

AU - Andreani,Pietro

PY - 2007

Y1 - 2007

N2 - This paper presents a hysteretic (sliding mode) control IC for a buck DC/DC converter for use as an envelope tracking power supply to increase the efficiency of an RF power amplifier. The IC integrates a high-bandwidth error amplifier, a comparator with hysteresis, and a high-side driver for an external N-channel power MOSFET. The total control loop delay using the implemented IC is 35ns, this is shown to be a 30% reduction compared to a state-of-the-art discrete IC based solution. The presented results also show that it is viable to integrate a 100MHz operational amplifier on the same die as a high-voltage MOSFET driver operating with slew rates in excess of 5V/ns. The IC is demonstrated in a tracking power supply with 30W output power and 3μs rise/fall time, running from a 40V input. The complete IC, including pads, takes up 4mm2 in a 0.35μm 50V CMOS process.

AB - This paper presents a hysteretic (sliding mode) control IC for a buck DC/DC converter for use as an envelope tracking power supply to increase the efficiency of an RF power amplifier. The IC integrates a high-bandwidth error amplifier, a comparator with hysteresis, and a high-side driver for an external N-channel power MOSFET. The total control loop delay using the implemented IC is 35ns, this is shown to be a 30% reduction compared to a state-of-the-art discrete IC based solution. The presented results also show that it is viable to integrate a 100MHz operational amplifier on the same die as a high-voltage MOSFET driver operating with slew rates in excess of 5V/ns. The IC is demonstrated in a tracking power supply with 30W output power and 3μs rise/fall time, running from a 40V input. The complete IC, including pads, takes up 4mm2 in a 0.35μm 50V CMOS process.

BT - ESSCIRC 2007

T2 - ESSCIRC 2007

ER -