LTC3809-1 Datasheet (Linear Technology) - Synchronous DC/DC Controller

LTC3809-1, Synchronous DC/DC Controller

The LTC®3809-1 is a synchronous step-down switching regulator controller that drives external complementary power MOSFETs using few external components.

The constant frequency current mode architecture with MOSFET VDS sensing eliminates the need for a current sense resistor and improves efﬁciency.

LTC3809-1 Features

* n Programmable Output Voltage Tracking n No Current Sense Resistor Required n Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response n Wide VIN Range: 2.75V to 9.8V n Wide VOUT Range: 0.6V to VIN n 0.6V ±1.5% Reference n Low Dropout Operation: 100% Duty Cycle n Sele