A 0.35um 50V CMOS sliding-mode control IC for buck converters
(2007) p.182-185- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1050952
- author
- Höyerby, Mikkel ; Andersen, Michael and Andreani, Pietro LU
- publishing date
- 2007
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- ESSCIRC, 33rd European Solid State Circuits Conference, 2007.
- pages
- 182 - 185
- external identifiers
-
- scopus:44849141101
- ISSN
- 1930-8833
- ISBN
- 978-1-4244-1125-2
- DOI
- 10.1109/ESSCIRC.2007.4430275
- language
- English
- LU publication?
- no
- id
- d96f79da-09f5-4ad4-93c3-dc2fbe5ebceb (old id 1050952)
- alternative location
- http://ieeexplore.ieee.org/iel5/4430236/4430237/04430275.pdf
- date added to LUP
- 2016-04-04 09:20:11
- date last changed
- 2022-03-31 02:14:06
@inproceedings{d96f79da-09f5-4ad4-93c3-dc2fbe5ebceb, abstract = {{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.}}, author = {{Höyerby, Mikkel and Andersen, Michael and Andreani, Pietro}}, booktitle = {{ESSCIRC, 33rd European Solid State Circuits Conference, 2007.}}, isbn = {{978-1-4244-1125-2}}, issn = {{1930-8833}}, language = {{eng}}, pages = {{182--185}}, title = {{A 0.35um 50V CMOS sliding-mode control IC for buck converters}}, url = {{http://dx.doi.org/10.1109/ESSCIRC.2007.4430275}}, doi = {{10.1109/ESSCIRC.2007.4430275}}, year = {{2007}}, }