Texas Instruments

TPS65251RHA  

DC Switching Voltage Regulators

TPS65251RHA Description

The TPS65251RHA from Texas Instruments is a high-performance, triple-output synchronous buck converter designed for power management in demanding applications. This obsolete but robust IC features an adjustable output configuration with a wide input voltage range of 4.5V to 18V, making it suitable for diverse power supply designs. Each of its three outputs supports 3A, 2A, and 2A current capabilities, with output voltages adjustable from 0.8V to 18V. The device operates at a switching frequency range of 300kHz to 2.2MHz, enabling flexibility in efficiency and component size trade-offs. Packaged in a 40VQFN tube, it is optimized for surface-mount applications and complies with ROHS3 and REACH environmental standards.

TPS65251RHA Features

• Triple-Output Buck Converter: Independent regulation for three outputs, ideal for multi-rail systems.
• Wide Input Range: Supports 4.5V–18V input, accommodating various power sources.
• High Efficiency: Synchronous rectification reduces power losses, enhancing thermal performance.
• Adjustable Frequency (300kHz–2.2MHz): Balances efficiency and noise for optimized designs.
• Compact 40VQFN Package: Space-saving footprint for high-density PCB layouts.
• Robust Protection: Built-in features like overcurrent and thermal shutdown ensure reliability.

TPS65251RHA Applications

• Embedded Systems: Powering processors, FPGAs, and ASICs requiring multiple voltage rails.
• Industrial Automation: Reliable voltage regulation for control systems and sensors.
• Telecommunications: Efficient power delivery in networking and communication equipment.
• Consumer Electronics: Multi-rail power management in high-performance devices.

Conclusion of TPS65251RHA

The TPS65251RHA stands out for its triple-output flexibility, wide input range, and high efficiency, making it a versatile choice for complex power architectures. While marked as obsolete, its performance remains competitive for legacy or specialized designs requiring multi-rail regulation. Engineers valuing synchronous rectification, adjustable frequency, and compact packaging will find this IC a compelling solution for industrial, telecom, and embedded applications.

TPS65251RHA Documents

Download datasheets and manufacturer documentation for TPS65251RHA

Datasheets :

TPS65251