AN2815催效率降压型控制器与嵌入式2 LDO稳压器

AN2815催效率降压型控制器与嵌入式2 LDO稳压器

AN2815
Application note
High-efficiency step-down controller
with embedded 2 A LDO regulator

Introduction
The PM6675AS device consists of a single, high-efficiency step-down controller and an
independent low dropout (LDO) linear regulator.
The constant on-time (COT) architecture assures fast transient response supporting both
electrolytic and ceramic output capacitors. An embedded integrator control loop
compensates the DC voltage error due to the output ripple