Dual-Slot Controller: TPS2358/59 Texas Instruments´ TPS2358/9 dual-slot controllers manage two 12V rails and two 3.3V rails for Advanced Mezzanine Cards in ATCA™, µTCA™ or custom systems. These TI devices include hot swap, ORing, and status indicators for all four paths. An optional I2C interface provides programmability and monitoring with the highest integration, flexibility, and performance in one small package.