Power Electronics / Power Management


Current-sharing LDOs for harsh environments

16 July 2014 Power Electronics / Power Management

Texas Instruments has introduced new current-sharing low-dropout (LDO) linear voltage regulators for harsh environments.

The current-sharing feature of the 3 A TPS7H1101-SP and the 0,5 A TPS7H1201-HT allows designers to use two devices in parallel for twice the output current.

The TPS7H1101-SP is QML Class V-qualified up to 125°C for harsh environments, such as high-reliability medical equipment, satellites and undersea cabling. The TPS7H1201-HT is qualified up to 210°C for high-temperature applications, such as downhole drilling.

The devices’ 1,5 V to 7 V input range allows voltage support for power rails below 3,3 V, and low dropout of 75 mV at 1 A allows for minimal input-to output-voltage conversion for reduced power dissipation. Very low output noise of 17 μVrms, coupled with a high power supply rejection ratio of 45 dB at 1 kHz, supports noise-sensitive applications.

For more information contact EBV Electrolink, +27 (0)21 402 1940, capetown@ebv.com, www.ebv.com



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