TIPA-050057

This power-supply design describes the optimized power management IC (PMIC) to power the AM335 processor. The user's guide can be used as a reference for connectivity between the TPS65910Ax power management integrated circuit (PMIC) and the AM335x processor. The TPS65910x device is an integrated PMIC designed for applications powered by one Li-ion battery cell or a 5V input adapter and can supply multiple power rails.
The TPS65910x device is an integrated PMIC for the Sitara AM335x processor family. The TPS65910 device can power the AM335x family of processors supporting 300-, 600-, 720-, 800- and 1000-MHz frequencies. Of the AM335x designs, the TPS65910 has the largest amount of rails, making it a full-system PMIC. Specifically, the TPS65910x device provides three DC/DC converters and nine LDOs. This gives the TPS65910x device the ability to power an entire system, including the processor and system peripherals. An example application where a full system PMIC might be needed is in video surveillance systems. Video surveillance systems require power hungry processors as well as many peripherals such as microphones, speakers, LCDs and wired or wireless connectivity. The biggest benefit of the TPS65910 device is that it can integrate a full system into a single package to reduce the number of components and overall design size.