MAX20474 Synchronous Boost Converter
Analog Devices MAX20474 Synchronous Boost Converter is a high-efficiency DC-DC converter that boosts 3.0V to 5.5V input supply from 6V to 18V at a 1A load. This Analog Devices module achieves ±1.5% output error over load, line, and temperature range and features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load transient response, as well as a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDSON switches improve efficiency at heavy loads and make planning the layout a much simpler task for discrete solutions. Other features include true shutdown, soft-start, overcurrent, and overtemperature protections.
