Power Supply Module for System on Chip with Wide Input Range

Author

Hu Lin ; Wu Xiaobo ; Lou Jiana ; Zhou Yin

Author_Institution

Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

This paper presents a power supply module (PSM) for SoCs (system on chip). This module, which is based on an improved LDO, has a wide input range and switchable power path. The proposed PSM can output a steady voltage of 6v as input voltage varies between 5.7 V-30 V, with a max error of 4.3%. It also provides a flexible power path. The SoCs will be supplied by either internal LDO or external power supply directly in corresponding applications. Further more, because of fast step of load condition in SoCs, a speedup loop was introduced to increase the stabilizing speed of output voltage, and up to 26.9% boost can be achieved according to simulation. The design accomplished under the 1.5 um BCD (Bipolar-CMOS-DMOS) technology.

Keywords

CMOS integrated circuits; system-on-chip; bipolar-CMOS-DMOS technology; external power supply; flexible power path; internal LDO; load condition; power supply module; size 1.5 mum; speedup loop; steady voltage; switchable power path; system on chip; voltage 5.7 V to 30 V; Consumer electronics; Electricity supply industry; Electronics industry; Firewire; Industrial electronics; Power supplies; Product design; System-on-a-chip; Very large scale integration; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5448752

Filename

5448752