Texas Instruments

TPS55340RTET

TPS55340RTET Description

The TPS55340RTET from Texas Instruments is a high-performance, adjustable-output DC-DC boost switching regulator designed for demanding power management applications. Packaged in a compact 16-pin WQFN (3.5mm x 3.5mm) surface-mount form factor, this regulator delivers up to 5.25A switch current with an input voltage range of 2.9V to 32V and an adjustable output voltage up to 38V. Its wide switching frequency range (94kHz to 1.14MHz) allows flexibility in optimizing efficiency and component size. The device supports positive, isolation-capable output configurations, making it suitable for isolated power supply designs.

TPS55340RTET Features

• Wide Input/Output Range: Operates from 2.9V to 32V input and delivers 2.9V to 38V output, accommodating diverse power requirements.
• High Efficiency: Utilizes a non-synchronous boost topology with low RDS(on) internal switch (170mΩ typical) for reduced power loss.
• Adjustable Frequency: 94kHz to 1.14MHz switching frequency enables trade-offs between efficiency and external component size.
• Robust Protection: Features thermal shutdown, overcurrent protection, and undervoltage lockout (UVLO) for reliable operation.
• Compact & Reliable: ROHS3-compliant and MSL-2 rated, suitable for industrial and automotive environments.

TPS55340RTET Applications

• Industrial Power Systems: Ideal for 24V industrial bus converters, PLCs, and motor drives requiring high-voltage step-up.
• Automotive Electronics: Supports 12V/24V automotive systems, infotainment, and LED lighting with wide input tolerance.
• Isolated Power Supplies: Used in telecom and medical devices due to isolation-capable output configuration.
• Battery-Powered Devices: Efficiently boosts low-voltage battery inputs (e.g., Li-ion, supercapacitors) to higher voltages.

Conclusion of TPS55340RTET

The TPS55340RTET stands out for its wide voltage range, high current capability, and flexible frequency adjustment, making it a versatile choice for boost converters in industrial, automotive, and isolated systems. Its compact design, robust protection features, and efficiency make it superior to similar regulators with narrower input ranges or fixed frequencies. Engineers will benefit from its adaptability and reliability in high-voltage power conversion applications.