This chapter introduces the common definitions and several typical application scenarios of fully integrated low-dropout regulators (LDOs). We classify fully integrated LDO into analog LDO, digital LDO, and switching LDO according to the control method of the power transistors. The goal is to provide the readers a general understanding of the LDO circuits and LDO in systems.

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Introduction to the Low-Dropout Regulator

  • Xiangyu Mao,
  • Yan Lu,
  • Rui P. Martins

摘要

This chapter introduces the common definitions and several typical application scenarios of fully integrated low-dropout regulators (LDOs). We classify fully integrated LDO into analog LDO, digital LDO, and switching LDO according to the control method of the power transistors. The goal is to provide the readers a general understanding of the LDO circuits and LDO in systems.