INDUCTORLESS_－5_V_CONVERTER

Published:2009/7/13 1:51:00 Author:May | From:SeekIC

Switched capacitor voltage converters are great for supplying an unregulated negative voltage from a positive supply. To provide a regulated negative voltage, a linear regulator is normally required.The LT1054 eliminates the extra voltage regulator by adding a pair of feedback resistors, as shown here. An internal feedback circuit allows full regulation of the output voltage with changes in input voltage and load cutpent. With a minimum input of 6.5 V, the LT1054 can produce a regulated -5-V output at loads of up to 100 mA max. External components required include four capacitors and two resistors.



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