60V, 3A step-down DC/DC converter has low dropout and 100μA quiescent current
Keith Szolusha
Abstract
The LT3434, a wide input voltage range, 200kHz, monolithic 3A, step-down DC/DC converter, is described.
Keywords
Step-down DC/DC converter
LT3434
Introduction
High voltage bipolar monolithic step-down converters are usually optimized for high efficiency at high output currents, often at the expense of light load efficiency and operation near dropout. The problem is that a 2mA quiescent current at zero load drains batteries in applications that spend long periods of time at minimum load current. One common solution for reducing quiescent current and improving battery run-time is a shutdown function, but shutdown drops the ...
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