A compact programmable LDO regulator for ultra-low voltage SoC

IEICE Electronics Express

Wei-Chen Liao¹  Chung-Hsun Huang¹ 

[1] Institute of Electrical Engineering, National Chung Cheng University

关键词: LDO;    programmable;    voltage scaling;   

DOI  :  10.1587/elex.11.20140820

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(8)This paper proposes a compact programmable low dropout (LDO) regulator for an ultra-low voltage system-on-a-chip (SoC) using the voltage scaling technique. Two innovative design concepts were proposed: a programmable multi-level resistor array that can precisely tune the ratio of the feedback resistor divider; and a current limiter that limits a small static current flowing through the resistor network while reducing the occupied area. Experimental results show that the monotonic 50-step programmable output ranging from 0.3 V to 0.8 V is achieved, with an input of 1 V and a maximum load current of 100 mA. The occupied area is only 0.017 mm2.

【 授权许可】

Unknown