TPS7B4254QDDARQ1 Integrated Circuits (ICs)

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of Regulators:	1
Current - Output:	150mA
Operating Temperature:	-40°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO PowerPad

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Texas Instruments TPS7B4254QDDARQ1 - Application Field and Working Principle

Texas Instruments TPS7B4254QDDARQ1 is a voltage regulator, also referred to as a linear regulator and is part of the PMIC (Power Management Integrated Circuit) family of devices. It is designed with a low-power and low-dropout feature to provide a regulated output down to 0.7V and features a fast switching device with internal current regulation to provide a constant output current. This device can be used in many applications including those in which low drop out voltage and high current capability is required.

Description of Operating Principle

The TPS7B4254QDDARQ1 linear regulator is based on a non-inverting configuration, where an external transistor, typically MOSFET (Metal Oxide Semiconductor Field-Effect Transistor), is used to regulate the flow of current through the device. The circuitry of the device is designed to provide a low-dropout and low-power operation, by providing the transistor with a small amount of current to drive the transistor and prevent it from entering saturation. This current is generated by the TPS7B4254QDDARQ1 through the use of two internal logic gates. When the input voltage exceeds the output voltage by a specific threshold voltage, the gates are triggered, sending current through the gates, allowing the transistor to draw current. This current exiting the gates is then regulated by the TPS7B4254QDDARQ1 circuit, preventing the transistor from entering saturation. The maximum output current from the linear regulator is determined by the gate parameters and by the output voltage.

Application Field

The Texas Instruments TPS7B4254QDDARQ1 voltage regulator is suitable for applications such as battery-backed systems, where the system can be powered solely by the battery. Its low dropout and high current capability make it ideal for a wide range of applications including motor control, sensor systems, and consumer electronics. The device can also be used in automotive systems, as it provides a regulated output and is able to withstand the fluctuations in voltage that occur in such systems. The TPS7B4254QDDARQ1 is also suitable for medical implements and consumer electronics that require a low ripple, low noise, and low power solution.

Conclusion

The TPS7B4254QDDARQ1 by Texas Instruments is a part of the PMIC family of devices, specifically the Linear Voltage Regulator. It offers a low dropout voltage, low power consumption and high current regulation, making it ideal for a variety of applications ranging from consumer electronics to motor control and automotive systems. Its non-inverting configuration makes it easy to use in these applications as it does not require any external circuitry or components to provide a regulated output voltage.

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