Buck boost DC/DC converter offers 2.7 to 40V input/output range
The LTC3114-1 from Linear Technology is a synchronous, current mode buck boost converter that delivers up to 1A of continuous output current from a range of power sources, including single cell Li-ion, 24/28V industrial rails and 40V automotive inputs.
The device's 2.2 to 40V input and 2.7 to 40V output range provides a regulated output with inputs above, below or equal to the regulated output, maximising power source flexibility and extending battery run time over step-down only solutions.
The proprietary low noise buck-boost topology incorporated in the LTC3114-1 provides a continuous jitter free transition between buck and boost modes, making it suitable for RF and other noise sensitive applications.
The device's selectable Automatic Burst Mode operation lowers quiescent current to only 30µA, improving light load efficiency and further extending battery run time.
The LTC3114-1 uses a constant 1.2MHz switching frequency and features pin programmable average output current and current monitor. Proprietary buck boost PWM circuitry ensures low noise and high efficiency while minimising the size of external components.
