题目/Title：Digital LDO with 1-bit ΔΣ modulation for low-voltage clock generation systems

作者/Author：
                        Haixin Song,Woogeun Rhee,Inbo Shim,Zhihua Wang

期刊/Journal：Electronics Letters

年份/Issue Date：2016Dec.

卷（期）及页码/Volume（No.）&pages：Vol.52, No.25, pp. 2034 - 2036

摘要/Abstract：
A coarse-fine dual-loop digital low dropout regulator (DLDO) having a binary weighed transistor array in the coarse loop and a 1-bit ΔΣ modulator in the fine loop is proposed. Compared with the conventional DLDO, the proposed architecture significantly reduces hardware complexity and alleviates matching requirement, enabling a robust DLDO design for low-voltage phase-locked loops. The proposed DLDO designed in 65 nm CMOS generates a noise-shaped output voltage whose peak value is <;1 mV with the load current ranging from 100 μA to 6 mA.