Title :
Effect of resonant free power delivery network design on VRM performance
Author_Institution :
Networking & Comput. Syst. Group, Freescale Semicond., Austin, TX
Abstract :
This paper describes effect of designing resonant free power delivery network (PDN) on the performance of voltage regulator modules (VRM) commonly used in microprocessor systems. The performance parameters of the VRM as a result of decoupling capacitors (DECAPS) added at different stages of the PDN to realize the resonant free target impedance is described using the output impedance as a key parameter. Parametric curves and simulation results are presented to support the validity of the design oriented analysis with special emphasis on the performance of the VRM considering voltage sensing for feedback at different stages of the microprocessor PDN
Keywords :
electric impedance; frequency-domain analysis; microprocessor chips; voltage regulators; VRM; decoupling capacitor; design oriented analysis; microprocessor system; output impedance; resonant free power delivery network design; voltage sensing; Capacitance; Feedback loop; Frequency; Impedance; Microprocessors; Noise reduction; Packaging; Resonance; Semiconductor device noise; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2005. APEC 2005. Twentieth Annual IEEE
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-8975-1
DOI :
10.1109/APEC.2005.1452916
