TPS53688RSBT

DC DC Switching Controllers Overview

The TPS53688RSBT is a dual-channel, 8-phase step-down digital controller compliant with Intel VR13 standards. It features an input voltage range of 4.5 V to 17 V and supports output voltages from 0.25 V to 5.5 V. The device delivers up to 765 A of output current with a switching frequency adjustable between 300 kHz and 1.5 MHz. It utilizes a 40-pin QFN (5 mm x 5 mm) package and operates within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports N+M phase configurations with dynamic phase shedding for optimized efficiency across varying load conditions.
• Integrates D-CAP+ control architecture with under-shoot suppression for rapid transient response and precise current sharing.
• Includes built-in non-volatile memory to store programmable parameters as default values, reducing external component requirements.

DC DC Switching Controllers Applications

• Data center and enterprise rack servers
• Hardware accelerators
• Network interface cards (NIC)
• ASIC and high-performance client systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'RSBT' against the official Texas Instruments datasheet to confirm it denotes the correct tape-and-reel packaging variant. Ensure compatibility with PMBus v1.3.1 interfaces and validate that the 40-pin WQFN thermal pad requirements match your PCB layout specifications for proper heat dissipation.

DC DC Switching Controllers Selection Notes

Select this component when designing high-current power stages requiring digital control and telemetry via PMBus. It is suitable for applications needing adaptive voltage positioning and fast transient response. Ensure the design accommodates the 4.5 V to 17 V input range and utilizes compatible TI NexFET smart power stages for optimal performance.

DC DC Switching Controllers Part Context

This part belongs to the TPS53688 family of digital multi-phase controllers designed for high-density power delivery. It serves as a core management unit for next-generation processor power supplies, offering advanced digital features like programmable loop compensation and phase interleaving to meet stringent server-grade power integrity standards.

DC DC Switching Controllers Replacement Considerations

Consult the TPS53688A datasheet for potential pin-compatible or functionally equivalent alternatives within the same product line. Verify that any substitute maintains support for VR13 compliance and N+M phase configuration capabilities.