Datasheet Analog Devices LT3575IFE#PBF

LT3575
Isolated Flyback Converter
without an Opto-Coupler
FEATURES DESCRIPTION n The LT®3575 is a monolithic switching regulator specifically designed for the isolated flyback topology. No third
winding or optoisolator is required for regulation. The
part senses the isolated output voltage directly from the
primary side flyback waveform. A 2.5A, 60V NPN power
switch is integrated along with all control logic into a
16-lead TSSOP package. n 3V to 40V Input Voltage Range
2.5A, 60V Integrated NPN Power Switch
Boundary Mode Operation
No Transformer Third Winding or
Optoisolator Required for Regulation
Improved Primary-Side Winding Feedback
Load Regulation
VOUT Set with Two External Resistors
BIAS Pin for Internal Bias Supply and Power
NPN Driver
Programmable Soft-Start
Programmable Power Switch Current Limit
Thermally Enhanced 16-Lead TSSOP The LT3575 operates with input supply voltages from
3V to 40V, and can deliver output power up to 14W with
no external power switch.The LT3575 utilizes boundary …