Texas Instruments

TPS7350QD

TPS7350QD Description

The TPS7350QD from Texas Instruments is a fixed 5V, 500mA low-dropout (LDO) linear voltage regulator designed for precision power management in space-constrained applications. Housed in an 8-pin SOIC package, this regulator delivers a stable 5V output with a low dropout voltage of 0.23V at 500mA, ensuring efficient operation even with input voltages as low as 5.23V. With a wide input voltage range (up to 10V), it is suitable for both industrial and consumer electronics. The device features enable and reset control functions, along with over-current, over-temperature, and reverse-polarity protection, enhancing system reliability.

TPS7350QD Features

• Fixed 5V Output: Ensures stable voltage regulation for sensitive loads.
• Low Dropout Voltage (0.23V @ 500mA): Maximizes efficiency in low-input-voltage scenarios.
• High PSRR (53dB @ 120Hz): Minimizes noise for clean power delivery in RF and analog circuits.
• Protection Features: Includes over-current, over-temperature, and reverse-polarity safeguards.
• Enable/Reset Control: Allows for power sequencing and system management.
• Low Quiescent Current (550µA): Reduces power consumption in battery-operated devices.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.

TPS7350QD Applications

The TPS7350QD is ideal for applications requiring compact, reliable, and low-noise power regulation, such as:

• Portable Electronics: Smartphones, tablets, and wearables benefit from its low quiescent current.
• Industrial Systems: Sensors, PLCs, and control modules leverage its high PSRR and protection features.
• Embedded Systems: Microcontroller and FPGA power supplies due to its stable output and reset functionality.
• Automotive Electronics: Infotainment and telematics systems where reverse-polarity protection is critical.

Conclusion of TPS7350QD

The TPS7350QD stands out as a high-performance LDO regulator with low dropout, excellent noise rejection, and robust protection mechanisms. While now obsolete, its combination of compact design, efficiency, and reliability makes it a strong candidate for legacy designs or replacements in similar performance categories. Engineers seeking a 5V regulator with advanced control and safety features should consider this device for precision power applications.