A scalable, in-system upgradable, star topology power management architecture has been released by Lattice Semiconductor Corporation that can be used across a wide range of circuit boards requiring more than 12 power supply rails.
Power management functions include supply sequencing, monitoring, hot-swap control, reset and other supervisory signal generation among others.
The complexity of power management functions grows significantly when the number of circuit board power supplies increases. The solution often demands the use of multiple power management devices. As a result, designers typically are forced to partition the overall power management task and implement it using distributed algorithms in multiple devices, a costly and time consuming approach.
The inadequacies of this approach become apparent only during the board debug stage, forcing board re-spin and costly project delays.
The integrated power management approach made possible by the Platform Manager devices, on the other hand, reduces cost and increases board reliability.
Designs for the Power Manager II and Platform Manager devices are implemented using the company’s PAC-Designer and its Diamond design software tools that are available for download free of charge from the company’s website at:
www.latticesemi.com/pac-designer and www.latticesemi.com/latticediamond
Lattice Semiconductor
