TPS51622ARSMR

Series:	D-CAP™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Controller, Intel VR12.6
Voltage - Input:	4.5 V ~ 28 V
Number of Outputs:	1
Voltage - Output:	0.5 V ~ 2.3 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-VQFN (4x4)
Base Part Number:	TPS51622

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TPS51622ARSMR Application Field and Working Principle

The TPS51622ARSMR is an easy-to-use, low static power, 4-phase synchronous buck voltage regulator for applications that require a high degree of accuracy and stability. It works in a wide variety of applications, ranging from high-performance computing, automotive, industrial and consumer electronics, etc.The TPS51622ARSMR is an integrated synchronous buck regulator that combines an input capacitor, an output filtering capacitor, and an adjustable current limit into a single package. The all-digital operation allows the system to achieve higher accuracy and a wide range of operation. It operates over a voltage range of 0.6V to 3.36V, delivering up to 8A source or sink current.

Features

The TPS51622ARSMR offers several features to help optimize the regulation of power supplies. Some of these features include phase dropping for better power supply design, adjustable output voltage, programmable dead-time control, programmable over-current protection, and programmable loop bandwidth. The TPS51622ARSMR also has a novel architecture for synchronous buck regulators. It uses a multi-phase operation, which allows for higher output current and improved power efficiency than a single-phase buck converter. Additionally, it offers simple current sharing from multiple devices, allowing the system to dynamically balance loads among the different power rails.

Working Principle

The TPS51622ARSMR uses a multi-phase power conversion architecture to generate the output voltage. The output current is sensed by an external current sensing resistor, which is then fed back to the regulator. The regulator then uses a digital control loop to regulate the output voltage to the desired setting.The TPS51622ARSMR implements a 4-phase operation, which reduces input and output inductor current ripple. This helps to minimize the energy loss in the circuit, contributing to a more efficient power system. It also enables a higher output current compared to single-phase buck regulators.The TPS51622ARSMR also uses programmable dead-time control to minimize the potential for shoot-through current. This helps to reduce system losses and makes for a more robust power supply.

Applications

The TPS51622ARSMR is a versatile voltage regulator that is suitable for a wide range of applications. It can be used in high-performance computing, automotive, industrial, and consumer electronics. It is also suitable for powering large FPGAs, microprocessors, GPUs, memory, and other power-hungry devices.Finally, the TPS51622ARSMR is an ideal choice for applications that require a high degree of accuracy and stability. The all-digital operation and programmable dead-time control enable the system to deliver a precise output voltage, even with different load conditions. Additionally, the TPS51622ARSMR consumes less static power than traditional linear regulators, making it a more efficient option for many applications.

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