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Solutions Power Management Switching Regulator Step-Down (Buck) Regulators Internal Power Switch Buck
Solutions Power Management Switching Regulator Step-Down (Buck) Regulators High Input Voltage Buck
Solutions Power Management Switching Regulator Step-Down (Buck) Regulators Micropower Buck Regulators

DC639A - LT1977IFE | High Voltage 1.5A 500kHz Step-Down Converter with Burst Mode, 4V-60Vin*, 3.3 Vout @ 1A

DC639A - Demo Board for:
LT1977 - High Voltage 1.5A, 500kHz Step-Down Switching Regulator with 100µA Quiescent Current

DC639A - Schematic