Texas Instruments

TPS75733KTTT

TPS75733KTTT Description

The TPS75733KTTT from Texas Instruments is a high-performance, fixed-output 3.3V, 3A low-dropout (LDO) linear voltage regulator in a DDPAK/TO-263-5 package. Designed for demanding power management applications, it features a low dropout voltage of 0.3V at 3A, ensuring efficient operation even with tight input-output differentials. With a 5.5V maximum input voltage, it is suitable for systems powered by 5V rails or battery sources. The device is RoHS3 compliant and REACH unaffected, meeting stringent environmental standards.

TPS75733KTTT Features

• High Current Output: Delivers 3A continuous current, ideal for powering high-load applications.
• Low Dropout Voltage: 0.3V at 3A minimizes power dissipation, improving thermal performance.
• Advanced Protection: Includes over-current, over-temperature, reverse polarity, and UVLO protection for robust operation.
• Control & Monitoring: Features enable pin and power-good signal for flexible power sequencing and system diagnostics.
• High PSRR: 62dB at 100Hz ensures stable output in noisy environments.
• Low Quiescent Current: 200µA enhances efficiency in battery-powered applications.
• Surface-Mount Package: DDPAK/TO-263-5 offers excellent thermal dissipation and PCB compatibility.

TPS75733KTTT Applications

• Point-of-Load Regulation: Ideal for FPGAs, ASICs, and processors requiring clean, stable 3.3V power.
• Industrial Systems: Suitable for PLC controllers, motor drives, and instrumentation due to its rugged design.
• Embedded Computing: Powers single-board computers (SBCs) and IoT devices with high current demands.
• Automotive Electronics: Used in infotainment and ADAS where reliability and thermal performance are critical.
• Battery-Powered Devices: Efficiently regulates voltage in portable medical equipment and handheld testers.

Conclusion of TPS75733KTTT

The TPS75733KTTT stands out as a high-current, low-dropout linear regulator with exceptional thermal and electrical performance. Its advanced protection features, high PSRR, and low quiescent current make it a superior choice for applications demanding reliability and efficiency. While marked as obsolete, its proven design ensures continued suitability for legacy systems and replacements. Engineers seeking a robust 3.3V, 3A regulator with enable control and power-good monitoring will find this device highly effective in industrial, automotive, and embedded applications.