A Single-Inductor Dual-Output Converter With the Stacked mosfet Driving Technique for Low Quiescent Current and Cross Regulation

Autor: Ying-Hsi Lin, Hsin Chen, Li-Chi Lin, Chao-Jen Huang, Tsung-Yen Tsai, Wen-Hau Yang, Chun-Chieh Kuo, Ke-Horng Chen, Shian-Ru Lin, Yu-Sheng Ma
Rok vydání: 2019
Předmět:
Zdroj: IEEE Transactions on Power Electronics. 34:2758-2770
ISSN: 1941-0107
0885-8993
DOI: 10.1109/tpel.2018.2845124
Popis: Stacked mosfet structures made of low-voltage devices suffer from degraded transient response or large footprint when a capacitorless or dominant-pole compensated low-dropout (LDO) regulator biases the driver. Due to the self-stabilizing nature, the proposed stacked mosfet driver (SMD) technology effectively drives the power stage and greatly reduces the noise at the switching nodes for low cross regulation (CR) in a single-inductor dual-output (SIDO) converter. In addition, two inherent LDO regulators in SMD technology fully regulate the dual outputs with the advantage of low quiescent current at no-load conditions. The experimental results show that the test chip fabricated under the 0.25- μ m process has low CR of 0.015 mV/mA and ultralow quiescent current of 5 μ A under no-load conditions.
Databáze: OpenAIRE