Texas Instruments

TPS73718DCQ

TPS73718DCQ Description

The TPS73718DCQ from Texas Instruments is a high-performance, fixed-output 1.8V, 1A low-dropout (LDO) linear voltage regulator in a SOT-223-6 package. Designed for robust operation, it features a 5.5V maximum input voltage and a low dropout voltage of 0.5V at 1A, making it ideal for power-sensitive applications. With a quiescent current of 400 µA and a supply current of 1.3 mA (max), it balances efficiency with performance. The device is RoHS3 compliant, REACH unaffected, and rated for MSL 2 (1 Year), ensuring reliability in industrial and consumer electronics.

TPS73718DCQ Features

• High PSRR (58dB @ 100Hz, 37dB @ 10kHz): Ensures stable output under noisy input conditions.
• Integrated Protection: Includes over-current, over-temperature, and reverse-polarity protection for enhanced system safety.
• Enable Control: Allows for power sequencing and low-power modes via the enable pin.
• Low Dropout (0.5V @ 1A): Suitable for battery-powered and low-voltage applications.
• Low Quiescent Current (400 µA): Optimized for energy-efficient designs.
• Compact SOT-223-6 Package: Space-saving footprint for PCB-constrained applications.

TPS73718DCQ Applications

The TPS73718DCQ excels in scenarios requiring stable, low-noise power delivery, such as:

• Portable Electronics: Smartphones, tablets, and wearables benefit from its low dropout and efficiency.
• Industrial Systems: Sensors, PLCs, and control modules leverage its high PSRR and rugged protection features.
• Embedded Computing: Ideal for powering microcontrollers, FPGAs, and DSPs in IoT and edge devices.
• Automotive Accessories: Non-critical subsystems like infotainment or lighting due to its robust design (though not AEC-Q qualified).

Conclusion of TPS73718DCQ

The TPS73718DCQ stands out among LDOs for its high current capability (1A), excellent PSRR, and integrated protections, making it a versatile choice for modern electronics. Its low dropout and quiescent current cater to energy-sensitive designs, while the enable pin and compact package add flexibility for space-constrained applications. Whether in consumer, industrial, or embedded systems, this regulator delivers reliable, clean power with minimal overhead.