DC224A - LT1339CSW / LT1082CQ | Buck Controller, 4.5V to 60Vin, 3.3V/5V/7V/ 12Vout @ 3Amp (thru-hole caps)

Demonstration circuit DC224A is a multipurpose, 3 amp synchronous step-down switching regulator using the LT1339. The input voltage range is 4.5V to 60V. The output voltage is jumper selectable for 3.3V, 5V, 7V or 12V. The board includes a small SEPIC converter based on the LT1082 that provides 12V for the LT1339 with any input voltage of 4V to 60V.