High voltage current mode step-down converter with low power standby capability
Jay Celani
Abstract
The use of the LT3800 as the core of a single-supply synchronous DC/DC converter is discussed.
Keywords
DC/DC converter
LT3800
Low power standby
Introduction
Low power standby requirements are typically associated with battery-powered systems. Automotive systems, for example, commonly require power supplies to maintain output voltage regulation even under no-load conditions—while drawing minimal quiescent current to preserve battery life. Rising energy costs, however, have extended the need for low current standby operation to line-powered systems, such as small plugged-in appliances for home and business.
Designing a power ...
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