LTC3890/LTC3891 efficiency improvement

Authors	Goran Perica, Victor Khasiev
Main Document	Article «Bootstrap biasing of high input voltage step-down controller increases converter efficiency»
Description	Figure 4
File Format / Size	PDF / 9 Kb
Document Language	English

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Article «Bootstrap biasing of high input voltage step-down controller increases converter efficiency»

Figure 1. Block diagram showing external bias
Figure 2. Voltage doubler allows external bias from V_OUT in the range of 2.5 V to 4.7 V
Figure 3. Boost controlled by astable multivibrator is used for V_OUTlower than 2.5 V
Figure 4. LTC3890/LTC3891 efficiency improvement

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Microcontrollers