Medium Integrated Power Solution Using a Dual DC/DC Converter and an LDO

This reference design is intended for users designing with the TMS320C6742, TMS320C6746, TMS320C6748, or OMAP-L138 processor. Using sequenced power supplies, this reference design describes a system having a 3.3-V input voltage and a high-efficiency dc/dc converter with integrated FETs for a small, simple design. Sequenced power supply architectures are becoming commonplace in high-performance microprocessor and digital signal processor (DSP) systems. To save power and increase processing speeds, processor cores have smaller geometry cells and require lower supply voltages than the system bus voltages. Power management in these systems requires special attention. This application report addresses these topics and suggests solutions for output voltage sequencing.