Datasheet Summary
Features n n n n n n n n n n n n n
LT3740 Wide Operating Range, Valley Mode, No RSENSE™ Synchronous Step-Down Controller DESCRIPTION
The LT®3740 is a synchronous step-down switching regulator controller that drives N-channel power MOSFET stages. The controller uses valley current mode architecture to achieve very low duty cycles with excellent transient response without requiring a sense resistor. The LT3740 includes an internal step-up converter to provide a bias 7.8V higher than the input voltage for the drive. This enables the part to work from an input voltage as low as 2.2V. The XREF pin is an external reference input that allows the user to override the internal 0.8V feedback...