Buck-Boost DC-DC Converter with Intelligent PowerPath
The LTC3118 combines a low-loss PowerPath controller with a single inductor buck-boost converter, resulting in a compact platform for multiple input designs. The LTC3118’s unique switch architecture allows operation from higher or lower voltage on either input, to a regulated output voltage. The wide input/output voltage range and ability to support over 2A of load current in step-down mode provides a robust solution for a wide variety of applications. The IC contains the necessary control and indicator pins to give the designer maximum system flexibility including Priority or Ideal Diode input select modes. Average current mode control provides rapid response for output load steps or input line steps during switchover. Using Linear Technology’s latest generation of Buck-Boost core and Burst Mode operation, both low noise and high efficiency can be achieved.
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