LTC3873-5 Datasheet - Linear Technology

LTC3873-5 Boost/Flyback/SEPIC DC/DC Controller

The LTC®3873-5 is a constant frequency current mode controller for boost, ﬂyback or SEPIC DC/DC converters designed to drive an N-channel MOSFET for high input and output voltage converter applications. The LTC3873-5 provides ±1.5% output voltage accuracy and consumes only 300μA quiescent current .

LTC3873-5 Features

* n VIN and VOUT Limited Only by External Components n Internal or Programmable External Soft-Start n Constant Frequency 200kHz Operation n Adjustable Current Limit n Current Sense Resistor Optional n ±1.5% Voltage Reference Accuracy n Current Mode Operation for Excellent Line and Load Transient Respo

LTC3873-5_LinearTechnology.pdf