Design of an on-chip SIDO step–down converter with independent outputs
Document typeConference report
Rights accessOpen Access
The portable electronics market is rapidly migrating towards more compact devices requiring multiple high-integrity high-efficiency voltage supplies for empowering the systems. This paper demonstrates a single inductor used in a buck converter with two output voltages from an input battery with voltage of value 3 V. The main targets are low cross regulation between the two outputs to supply independent load current levels while maintaining desired output voltage values well within the acceptable ripple levels. The proposed controller provides adaptive levels in order to limit the output ripple, achieving a high output voltage accuracy. A reverse current detector to avoid negative current flowing through the inductor, prevents possible efficiency degradation.
CitationMartinez, H., Silva-Martínez, J. Design of an on-chip SIDO step–down converter with independent outputs. A: Seminario Anual de Automática, Electrónica Industrial e Instrumentación. "Seminario Anual de Automática, Electrónica Industrial e Instrumentación 2015: SAAEI 2015". Zaragoza: 2015, p. 100-103.