Buck-boost converter offers 95% efficiency
A synchronous buck-boost converter, designed to deliver up to 1.5A of output current, has been introduced by Linear Technology.
The device's 2.5 to 15V input and output voltage range provides a regulated output from inputs above, below or equal to the regulated output.
The low noise buck-boost topology incorporated into the LTC3111 delivers a continuous, jitter-free transition between buck and boost modes, making it suitable for rf and other noise sensitive applications that must need to maintain a low noise, constant output voltage with a variable input power source.
The LTC3111's default 800kHz switching frequency can be synchronised to an external 600KHz to 1.5MHz clock, and its proprietary third generation buck-boost PWM circuitry ensures low noise and high efficiency, while minimising the size of external components.
