Graham Prophet @ eedesignnewseurope.com discuss about Linear’s low noise buck-boost converter LTC3246, able to produce 3.3V, 5V or ADJ regulated with an input range of 2.7V to 38V :
LTC3246 is a low noise buck-boost charge pump with integrated watchdog timer capable of up to 500 mA of output current. It uses multimode switched capacitor conversion to maintain regulation over a 2.7V to 38V input voltage range and produces a regulated 3.3V, 5V, or externally adjustable (2.5V to 5V) output.
2.7V to 38V/500 mA low noise buck-boost charge pump – [Link]
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