Dual output high efficiency converter produces 3.3V and 8.5V outputs from a 9V to 60V rail
Victor Khasiev
Abstract
The LTC3890, a high performance synchronous buck DC/DC controller with integrated N-channel MOSFET drivers, is described.
Keywords
Dual output controller
LTC3890
Introduction
Among the many step-down DC/DC switching regulator controllers, the LTC3890 stands out because of its unique features. This 50μA quiescent current device can produce two output voltages ranging from 0.8V to 24V when powered from an input voltage of 4V to 60V.
Many high input voltage step-down DC/DC converter designs use a transformer-based topology or external high side drivers to operate from up to 60VIN. Others use an intermediate bus ...
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