Abstract
This paper presents a highly efficient switched capacitor (SC) DC-DC converter, which is implemented in a 65nm low power CMOS process to enable SoC integration. The converter supplies a nominal output current of 30mA with an efficiency of 95%. The buck converter operates with a constant input voltage of 1.83V and produces an output voltage of 1.2V. The charge is transported in two phases from the input supply to the output capacitor. Therefore, a network consisting of switches and two so-called flying capacitors are used. This converter is intended to be used in power management units for mobile devices and to substitute complex and expensive inductor based DC-DC converters. A test chip was designed in collaboration with Infineon Technologies Austria AG. The measurement results are presented and give for an output current of 10mA a peak efficiency of 97%.
Originalsprache | englisch |
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Seiten | 1351-1354 |
Seitenumfang | 4 |
Publikationsstatus | Veröffentlicht - 2011 |
Veranstaltung | IEEE International Symposium on Circuits and Systems: ISCAS 2011 - Rio de Janeiro, Brasilien Dauer: 15 Mai 2011 → 18 Mai 2011 http://www.fpl.uni-kl.de/rio/www.iscas2011.org/index.htm |
Konferenz
Konferenz | IEEE International Symposium on Circuits and Systems |
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Kurztitel | ISCAS |
Land/Gebiet | Brasilien |
Ort | Rio de Janeiro |
Zeitraum | 15/05/11 → 18/05/11 |
Internetadresse |