SNVSBA5C December 2019 – May 2024 LP8866-Q1
PRODUCTION DATA
A Schottky diode must be used for the SEPIC output diode. Current rating must be at least 25% higher than the maximum current, which is the same as switch peak current. Schottky diodes with a low forward drop and fast switching speeds are ideal for increasing efficiency. At maximum current, the forward voltage must be as low as possible; TI recommends less than 0.5V. Reverse breakdown voltage of the Schottky diode must be able to withstand VIN(max) + VOUT(max); at least 25% higher voltage rating is recommended. Do not use ordinary rectifier diodes, because slow switching speeds and long recovery times cause efficiency and load regulation to suffer.