Title :
Converter and inductor design for fast-response microprocessor power delivery
Author :
Mehas, Gustavo J. ; Coonley, Kip D. ; Sullivan, Charles R.
Author_Institution :
Intel Corp., USA
Abstract :
The fundamental constraints for fast-response buck converters for applications such as microprocessor power delivery are analyzed, with an emphasis on the role of the inductor. Optimum values of ripple ratio, and thus inductor value, are calculated. Based on this analysis, microfabricated inductor designs are analyzed, and an inductor design is proposed with predicted performance including power density of 158 W/cm 2 and 95% efficiency for an 8 MHz, 3.6 V to 1.1 V converter
Keywords :
DC-DC power convertors; computer power supplies; microprocessor chips; power inductors; 1.1 V; 3.6 V; 8 MHz; 95 percent; fast-response buck converters; fast-response microprocessor power delivery; inductor design; microfabricated inductor designs; performance prediction; power converter design; power density; ripple ratio; Buck converters; Capacitance; Circuits; Inductance; Microprocessors; Packaging; Steady-state; Switches; Thin film inductors; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.880547
