RobG 1,892 Posted March 13, 2011 Share Posted March 13, 2011 Most of 3.3V LCD displays come with 5V back-light and one way of powering it in such displays is using step up converter. There are many available, like LT1300 from LT or MAX756/856 from Maxim. For my display, I am using LT1300 which requires 4 additional parts only: L1 - 22uH inductor (10uH-22uH will work) C1,C2 - 47uF (47uF-100uF) D1 - 1N5817 Schottky diode zeke, jsolarski, GeekDoc and 2 others 5 Quote Link to post Share on other sites
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