LT8301 Datasheet | Linear Technology

Features n 2.7V to 42V Input Voltage Range n 1.2A, 65V Internal DMOS Power Switch n Low Quiescent Current: n 100µA in Sleep Mode n 350µA in Active Mode n Boundary Mode Operation at Heavy Load n Low-Ripple Burst Mode® Operation at Light Load n Minimum Load <0.5% (Typ) of Full Output n VOUT Set with a Single External Resistor n No Transformer Third Winding or Opto-Isolator Required for Regulation n Accurate EN/UVLO Threshold and Hysteresis n Internal pensation and Soft-Start n Output Short-Circuit Protection n 5-Lead TSOT-23 Package n AEC-Q100 Qualified for Automotive Applications APPLICATIONS n Isolated Tele, Automotive, Industrial, Medical Power Supplies n Isolated Auxiliary/Housekeeping Power Supplies LT8301 42VIN Micropower No-Opto Isolated Flyback Converter with 65V/1.2A Switch DESCRIPTION The LT®8301 is a micropower isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with a single external resistor. Internal pensation and soft-start further reduce external ponent count. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. A 1.2A, 65V DMOS power switch is integrated along with all high voltage circuitry and control logic into a 5-lead Thin SOT™ package. The LT8301 operates from an input voltage range of 2.7V to 42V and can deliver up to 6W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low ponent count, and high efficiency application solution for isolated power delivery. All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. Patents, including 5438499, 7463497, and 7471522. TYPICAL...