The TPS51640ARSLT is a high-performance, adaptive on-time D-CAP+ mode synchronous buck controller from Texas Instruments. Designed for precision, efficiency, and flexibility, this advanced power management integrated circuit (IC) is ideal for multi-phase notebook power systems, providing a robust power solution for high-performance processors and graphics applications.

Key Features

• Adaptive On-Time Control: The TPS51640ARSLT utilizes D-CAP+ mode control, which allows for fast transient response and supports both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors without the need for external compensation.
• Multi-Phase Capability: This controller can be configured to operate in 1, 2, or 3-phase modes, making it versatile for various system power requirements and optimizing efficiency across different load conditions.
• High Efficiency: With integrated MOSFET drivers and a 0.5% reference voltage accuracy over temperature, the TPS51640ARSLT ensures efficient power conversion, which is crucial for extending battery life in portable applications.
• Advanced Power Saving Modes: The IC includes selectable modes such as Auto-mode, which allows for automatic switching between pulse width modulation (PWM) and power-saving modes based on load conditions, enhancing energy efficiency.
• Robust Protection Features: The device incorporates a range of protection features including overcurrent protection (OCP), overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown to ensure reliable operation under various conditions.

Applications

The TPS51640ARSLT is particularly suited for powering high-performance processors found in notebook computers, but its versatility extends to other applications that require efficient multi-phase power delivery. These include ultrabooks, tablets, and other portable electronics where power efficiency and space constraints are of paramount importance.

Package and Availability

The TPS51640ARSLT comes in a compact 40-pin QFN (RSL) package, which is designed to occupy minimal board space while providing optimal thermal performance. It is available for order and can be sourced directly from Texas Instruments or through authorized distributors.