DataSheet(current).PDFVIP

Distributed by: www.J ✦ 1-800-831-4242 The content and copyrights of the attached material are the property of its owner. LT1737 High Power Isolated Flyback Controller FEATURES DESCRIPTIOU ® ■ Drives External Power MOSFET The LT 1737 is a monolithic switching regulator control- ■ Supply Voltage Range: 4.5V to 20V ler specifically designed for the isolated flyback topology. ■ Flyback Voltage Limited Only by It drives the gate of an external MOSFET and is generally External Components powered from a DC supply voltage. Output voltage feed- ■ Senses Output Voltage Directly from Primary Side back information may be supplied by a variety of methods Winding—No Optoisolator Required including a third transformer winding, the primary wind- ■ Switching Frequency from 50kHz to 250kHz ing or even direct DC feedback (see Applications Informa- with External Capacitor tion). Its gate drive capability, coupled with a suitable ■ Moderate Accuracy