DC3077A, Demonstration Board, LT3002ES8E#TRPBF, Micropower No-Opto Isolated Flyback Converter

DC3077A is a LT3002 micropower no-opto isolated flyback converter with 65V/3.5A switch demonstration board. Demonstration circuit 3077A is a compact no-opto isolated flyback converter featuring the LT®3002. The DC3077A outputs 12V and maintains tight regulation with a load current from 5mA up to 1.1A over an input voltage from 10V to 30V. The output current capability increases with the input voltage. Transformer leakage inductance causes a voltage spike on the primary side after the power switch turns off. The leakage inductance spike is limited within the MOSFET's voltage rating of 65V with an RC snubber and a TVS clamp which damp the ringing and clamp the MOSFET drain voltage to a safe level.