Kyosuke Shimo , Ino Lorenz Ardiente , Aldrick S. Limjoco

December 2, 2025

This article explores the various sources of noise in switching regulators and their impact on different analog signal chain components. It highlights several noise mitigation strategies, including the use of low dropout (LDO) regulators as effective postregulation filters. The article also shows a range of solutions from Analog Devices (ADI) that deliver optimized LDO efficiency across varying load conditions and output voltages, while pairing good power supply noise rejection. One solution offers a new method for LDOs to control the headroom provided by switching regulators with current reference architectures.

Tiera Oliver

December 1, 2025

Today’s industrial power solutions are faced with the demands of performing low-power operations while also meeting energy-efficient goals. These solutions must operate in varying rugged environments that require continuous operation, wide temperature ranges, and overall provide a reliable and safe power supply.