Buck converters need 2.7-μA quiescent current

摘要

The LT3975 and LT3976 42-V step-down switching regulators delivers 2.5-A continuous output current and requires only 2.7-μA quiescent current. The converters can operate from a 40-V input, deliver up to 5-A output current and require only 3.3-pA of quiescent current. Both devic- es offei a 4.2- to a nominal 40-V input voltage range, suiting them for automotive and industrial applications.