3 Space Rated Power Devices

TI's portfolio of leading power density ICs is capable of providing a full power management design through a selection of buck converters, LDOs, DDR termination regulators and PWM controllers as shown in the table below.

The TPS7H4001-SP and TPS7H4003-SEP are high current (18 A) buck converters with integrated FETs and the key feature of being able to parallel up to 4 devices 90 degrees out of phase without the need for external clocking meant to meet the increasing need for higher current on the core rail. The 0.6 V reference allows them to meet the low voltage requirement typically seen for this rail. The TPS50601A-SP is a smaller 6 A highly efficient buck converter with over a decade in flight heritage used to power many of the auxiliary rails. The footprint compatible TPS7H4002-SP can also be used for powering auxiliary rails as it is architecturally very similar to the TPS50601A-SP with a lower current limit for smaller inductor sizing. For a similar 6 A rad-tolerant design, the TPS7H4010-SEP provides an extremely compact design in a 4x6 mm WQFN package and is the widest V_in space grade switching regulator at 32 V_in.

The RHA buck converters are limited to a 7V_in recommended operating condition. If a designer needs to accommodate a higher input voltage, the TPS7H5001-SP PWM controller can be used to build a discrete buck converter. This highly flexible controller paired with a gate driver is capable of working with both Si and GaN FETs to be used as a first stage conversion or in a high efficient GaN supply that powers the core rail directly. The 0.6 V reference with +0.7%/-1.0% reference accuracy provides a very tight tolerance to meet the core voltage.

For noise sensitive rails, TI can provide a number of low-dropout regulators. The TPS7H1101A-SP offers the most integrated design with enable, configurable soft-start, and power good for power sequencing as well as added protective features like current foldback protection. For a rad-tolerant alternative, the TPS73801-SEP provides an extremely versatile LDO to be used across its wide input range (2.2 - 20 V_in) all in a small plastic 6.5 x 3.5 mm SOT package. The TPS7H1111-SP and TPS7H1111-SEP can be used as alternatives for applications needing high PSRR and noise performance.

Lastly, for powering DDR memory, the TPS7H3301-SP or TPS7H3302-SEP is a linear design with the capability to sink and source current and able to power DDR1, DDR2, DDR3, DDR3L, and DDR4. The links in the table below will direct you to the product page of each device for more product specific information.

For more detailed information regarding set up, sequencing and measurements, please see the application note: TI Space Rated Power Solution for Microsemi® RTG4™ FPGA.