Texas Instruments

TPS7301QD  

Linear & Switching Voltage Regulators

TPS7301QD Description

The TPS7301QD from Texas Instruments is a high-performance, low-dropout (LDO) linear voltage regulator designed for precision power management in space-constrained applications. This adjustable positive-output regulator delivers up to 500mA of output current with an ultra-low dropout voltage of 0.21V at 200mA, ensuring efficient operation even with tight input-output differentials. The input voltage range spans up to 10V, while the output is adjustable from 1.2V to 9.75V, offering flexibility for diverse circuit requirements. Packaged in an 8-pin SOIC (Surface Mount) form factor, this obsolete but REACH-unaffected device remains compliant with ROHS3 standards, making it suitable for legacy designs or specific industrial applications.

TPS7301QD Features

• High PSRR (68dB at 100Hz): Excellent noise rejection for sensitive analog/digital loads.
• Low Quiescent Current (550µA max): Enhances power efficiency in battery-operated systems.
• Integrated Protection: Includes over-current, over-temperature, reverse polarity, and under-voltage lockout (UVLO) for robust system reliability.
• Enable Control: Allows for power sequencing and standby mode to reduce energy consumption.
• Wide Adjustable Output (1.2V–9.75V): Supports multiple voltage rails without external components.
• Low Dropout (0.21V at 200mA): Minimizes power dissipation, ideal for low-input-voltage scenarios.

TPS7301QD Applications

The TPS7301QD excels in applications demanding stable, low-noise power with minimal dropout:

• Portable Electronics: Smartphones, tablets, and wearables benefit from its low quiescent current and small footprint.
• Industrial Sensors: High PSRR ensures accuracy in noise-prone environments.
• Medical Devices: Reliable protection features safeguard critical systems.
• Automotive Modules: UVLO and reverse polarity protection enhance durability in vehicular systems.
• Embedded Systems: Adjustable output suits FPGA, DSP, and microcontroller power rails.

Conclusion of TPS7301QD

While marked as obsolete, the TPS7301QD remains a viable choice for designs requiring a compact, efficient LDO with advanced protection and noise immunity. Its combination of low dropout, high PSRR, and adjustable output makes it ideal for legacy upgrades or niche applications where newer alternatives may not meet specific voltage or footprint constraints. Engineers valuing reliability and performance in precision power delivery will find this regulator a dependable solution.

TPS7301QD Documents

Download datasheets and manufacturer documentation for TPS7301QD

Datasheets :

TPS7325QPW      

PCN Obsolescence/ EOL :

Mult Dev obs 13/Oct/2022      

HTML Datasheet :

TPS7325QPW