A 26nA Ultra-Low Input Current, 81nW Ultra-Low Power and 1μs Recovery Time Ultra-Fast Transient DC-DC Buck Converter for Internet-of-Things. - Sheng Cheng Lee; Yu-Teng Liang; Hsing-Yen Tsai; Jia-Rui Huang; Peng-Chu Chen; Chao-Heng Liu; Yu-Tse Shih; Ke-Horng Chen; Kuo-Lin Zheng; Ying-Hsi Lin; Shian-Ru Lin; Tsung-Yen Tsai (ESSCIRC, 2023)