Title :
On the design of single-inductor double-output DC-DC buck, boost and buck-boost converters
Author :
Belloni, Massimiliano ; Bonizzoni, Edoardo ; Maloberti, Franco
Author_Institution :
Dept. of Electron., Univ. of Pavia, Pavia
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
Design methodologies for Single-Inductor Dual-Output (SIDO) DC-DC switching converters are presented. The suitable control of a double feedback loop enables the single inductor sharing between two outputs with low output voltages errors and limited load-regulation. The design methods to achieve SIDO converters with a wide input supply voltage range and with an overall driving capability as large as 1.4 A have been verified with simulations at the transistor level. The switching frequency can be 3 MHz or more with a small off-chip inductor.
Keywords :
DC-DC power convertors; inductors; switching convertors; DC-DC switching converters; buck-boost converters; double feedback loop; low output voltages errors; single-inductor double-output DC-DC buck converters; small off-chip inductor; switching frequency; Buck converters; Costs; DC-DC power converters; Design methodology; Inductors; Regulators; Switches; Switching converters; Topology; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4674931
