LT1082

U U LT1082 1A High Voltage, Efficiency Switching Voltage Regulator FEATURES s Wide Input Voltage Range: 3V to 75V s High Switch Voltage: 100V s Low Quiescent Current: 4.5mA s Internal 1A Switch s Shutdown Mode Draws Only 120µA Supply Current s Isolated Flyback Regulation Mode for Fully Floating Outputs s Can Be Externally Synchronized s Available in MiniDIP and TO-220 Packages s Same Pinout as LT1072 U APPLICATIO S s Telecom 5V Supply at 0.7A from –48V s 90V Supply at 120mA from 15V s All Applications Using LT1072 (See Below for Specification Differences) LT1082 and LT1072 Major Specification Differences LT1082C LT1072HV VIN VSW Switch Current Limit Quiescent Current Operating Frequency Flyback Reference Voltage 3V to 75V 3V to 60V 100V 75V 1A 1.25A 4.5mA 6mA 60kHz 40kHz 16.2 + 0.6 (35kΩ/RFB) 16 + 0.35 (7kΩ/RFB) USER NOTE: This data sheet is only intended to provide specifications, graphs, and a general functional description of the LT1082. Application circuit...