TPS51275CRUKT

Voltage/Current - Output 3:	3.3V, 100mA
Base Part Number:	TPS51275
Supplier Device Package:	20-WQFN (3x3)
Package / Case:	20-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	5 V ~ 24 V
w/Sequencer:	No
w/Supervisor:	No
w/LED Driver:	No
Series:	D-CAP™
Voltage/Current - Output 2:	Controller
Voltage/Current - Output 1:	Controller
Frequency - Switching:	300kHz, 355kHz
Number of Outputs:	4
Function:	Any Function
Topology:	Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The TPS51275CRUKT is a Linear and Power \(LPP\) Switching PMIC \(Power Management Integrated Circuit\) with built-in Voltage Regulators that assists in voltage regulation for industrial and embedded applications. The device automatically switches between the two power modes (Linear and Power) based on signals from external devices or the user, giving it flexibility and increasing efficiency in the system.

Application Field

The TPS51275CRUKT from Texas Instruments is suitable for a wide range of applications, such as digital and personal health devices, power management for maker projects, servo drives that require more than 8V for powering, industrial devices and communication systems, automotive and home appliance applications, FPGA/microcontroller designs, and so on.In particular, the TPS51275CRUKT is used in a variety of applications specifically related to Voltage Regulators and the PMIC’s efficacy in voltage-controlled switching and linear mode control. It is designed to provide a reliable solution to power up or down peripherals or subcomponents, such as relays and motors, by controlling the voltage and current flow. With its ±2% accuracy, it can also be used in applications where precision is needed, such as data acquisition systems, consumer electronic products, etc.

Key Features and Benefits

The TPS51275CRUKT from Texas Instruments offers a number of key features and benefits, such as: - Easy-to-Use and Configure: With an adjustable output voltage range of 0.8V and 8V, the device is easy to configure in a variety of settings. - Lower System Cost: With its built-in power-switching capabilities, the device reduces the need for external components, enabling lower system costs. - Improved System Efficiency: Its power-switching capabilities allow for improved efficiency in the system, resulting in lower power consumption, improved power supply efficiency, and heightened reliability. - Improved Reliability: With its built-in protection features, the device can detect and protect against short-circuits, thermal overload, and output voltage overcurrent.

Working Principle

The TPS51275CRUKT from Texas Instruments uses an embedded voltage regulation and control microcontroller to generate a regulated output voltage. The device is divided into two parts, one for linear operation and the other for power switching. In linear mode, the device uses an external reference voltage source to set the desired output voltage, which is maintained by the microcontroller. In power switching mode, the device uses a sense resistor to detect current flow and the microcontroller adjusts the switching frequency to maintain the desired output voltage. When the output voltage demand is low, the device operates in linear mode, which is a lower power, lower efficiency power mode, but provides a high degree of accuracy. When the output voltage demand is high, the device switches to power switching mode which is a higher power, higher efficiency power mode, but provides lower accuracy. Depending on the external signal or user input, the TPS51275CRUKT can switch automatically between the two modes.

Conclusion

Overall, the TPS51275CRUKT from Texas Instruments is an effective power management solution for Voltage Regulators and Power Switching applications. With its wide range of features and applications, the device can reduce system cost and improve efficiency. The device utilizes a microcontroller to regulate the output voltage in both linear and switching modes and is capable of switching between the two automatically based on signals from external devices or the user.

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