DDR Memory-Termination Linear Regulator for Space Applications

Texas Instruments (TI) today introduced the industry's first double-data-rate (DDR) memory linear regulator for space applications. The TPS7H3301-SP is the only DDR regulator immune to single-event effects up to 65 megaelectron volts per centimeter squared (MeV-cm²), powering space-satellite payloads including single-board computers, solid-state recorders and other memory applications.

Integrating two monolithic power field-effect transistors (FETs) for source and sink termination and an internal voltage reference, the TPS7H3301-SP is up to 50 percent smaller than a switch-mode regulator DDR solution. To see a live demonstration of the new regulator and learn about other products from TI's leading-edge radiation-hardened portfolio, visit Booth 43 during the 2016 Institute of Electrical and Electronics Engineers (IEEE) Nuclear and Space Radiation Effects Conference (NSREC), starting today.

Key features and benefits: Small size: At 0.16 square inches, the device is up to 50 percent smaller than a switch-mode regulator DDR solution, delivering critical weight and launch cost savings. Superior radiation performance: Along with industry-leading immunity, the device withstands a total ionizing dose of up to 100 krad. Its stable termination power supply ensures that single-event effects do not impact read-and-write operations.

The TPS7H3301-SP is available now in a 16-pin dual-ceramic flat package that is Qualified Manufacturer List (QML) Class V and 100 krad (silicon) radiation hardness assurance (RHA) qualified (5962R1422801VXC).