Texas Instruments announced the 3-A TPS7H1101-SP and the 0.5-A TPS7H1201-HT current-sharing low-dropout linear voltage regulators. The TI devices are the first LDO linear voltage regulators for harsh environments. The TI TPS7H1101-SP and the TPS7H1201-HT are available now in a 16-pin thermally enhanced ceramic flat pack (CFP).
TI TPS7H1101-SP and TPS7H1201-HT LDOs Features
- Double the current capability
- Two TPS7H1101-SP LDOs used in parallel can output up to 6 A
- Two TPS7H1201-HT LDOs can output up to 1 A
- LDOs reduce stress on the components to meet higher current demands
- Time between failures is reduced by half
- Over 80% better thermal performance than similar solutions offered today
- Enhanced thermal packaging minimizes thermal temperature for higher reliability
- 1.5-V to 7-V input allows voltage support for power rails below 3.3 V
- Low dropout of 75 mV at 1 A
- Minimal input-to output-voltage conversion for reduced power dissipation
- Very low output noise of 17 uVrms
- High power supply rejection ratio of 45 dB at 1 kHz
- Supports noise-sensitive applications, such as medical equipment and oil and gas exploration equipment
The current-sharing feature of the 3-A TPS7H1101-SP and the 0.5-A TPS7H1201-HT enables designers to use two devices in parallel for twice the output current. The LDOs also offer excellent noise performance, minimized thermal dissipation and increased power efficiency for optimal system reliability.
The TPS7H1101-SP LDO is QML Class V-qualified up to 125 degrees C for harsh environments, such as high-reliability medical equipment, satellites and undersea cabling. The TPS7H1201-HT LDO is qualified up to 210 degrees C for high-temperature applications, such as downhole drilling.
More info: Texas Instruments TPS7H1101-SP and TPS7H1201-HT LDO Regulators (pdf)