Texas Instruments

TPS54316QPWPRQ1

TPS54316QPWPRQ1 Description

The TPS54316QPWPRQ1 is a high-efficiency, 3A synchronous buck converter from Texas Instruments, designed for automotive-grade applications. This fixed 3.3V output regulator operates over a 3V to 6V input range, making it suitable for low-voltage power systems. With a switching frequency of 350kHz or 550kHz, it balances efficiency and component size, while its synchronous rectification minimizes power loss. Packaged in a 20-pin HTSSOP (PowerPAD™), it is optimized for surface-mount designs and complies with ROHS3 and REACH standards.

TPS54316QPWPRQ1 Features

• Automotive-Grade Reliability: Qualified for harsh environments with AEC-Q100 compliance.
• High Efficiency: Synchronous rectification achieves >90% efficiency, reducing thermal dissipation.
• Wide Input Range (3V–6V): Supports common 5V/3.3V bus applications.
• Dual Switching Frequency (350kHz/550kHz): Flexibility for noise-sensitive or compact designs.
• Integrated Protection: Includes thermal shutdown, UVLO, and overcurrent protection.
• Compact Footprint: 20-HTSSOP package with PowerPAD™ for enhanced thermal performance.

TPS54316QPWPRQ1 Applications

• Automotive Systems: Powering infotainment, ADAS, and sensors in 12V/24V battery-based systems.
• Industrial Electronics: Point-of-load regulation for FPGAs, ASICs, and microcontrollers.
• Portable Devices: Efficient power management in battery-operated equipment.
• Embedded Systems: Stable voltage supply for IoT edge devices and communication modules.

Conclusion of TPS54316QPWPRQ1

The TPS54316QPWPRQ1 stands out for its robust automotive compliance, high efficiency, and compact design, making it ideal for space-constrained, high-reliability applications. While now obsolete, its legacy performance in synchronous buck conversion remains relevant for designs requiring 3.3V/3A output with minimal external components. Engineers should consider alternative TI models for new designs but may leverage this IC for proven solutions in automotive and industrial power systems.