In summary, the LTC3589 is a complete power management solution for ARM and ARM-based processors and advanced portable microprocessor systems. The IC contains three high efficiency synchronous step-down DC/DC converters, one high efficiency synchronous buck-boost regulator, four LDO regulators, an I²C serial port for thorough control, and a pushbutton controller for easy interface to the microprocessor. The device is available in a low profile, thermally enhanced 40-lead 6mm x 6mm QFN package.

