TPS77515DR

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The TPS77515DR is a low quiescent current linear voltage regulator from Texas Instruments. It is part of the TPS775xx series of low-dropout (LDO) linear voltage regulators. The series includes a variety of fixed-output voltage options and comes in a small VSON package that can be easily soldered on a PCB board. The TPS77515DR features a variety of features for controlling the output voltage of a power supply, making it an ideal solution for a number of applications. This article provides an overview of the TPS77515DR, including its application fields and working principle.

Features and Specifications

The TPS77515DR offers a variety of features and specifications that make it an ideal solution for many applications. The device provides a fast and accurate output voltage control, with a maximum load current of 1.5A and a maximum output voltage range of 4.5V to 28V. It uses a series current limit to protect against sudden surges in current, and features a minimum load current of 10uA, allowing for a very low-power operation.

The device also has a thermal protection circuit that prevents against over-temperature conditions and a ground sense pin that provides an additional sense path back to the ground. Other features include an enable pin which can be used to control the output operation and a minimum output voltage set point of - 0.2V. The device is available in a 6-pin VSON package and is rated for operation between the temperatures of -40°C and 150°C.

Application Field

The TPS77515DR is a low-dropout (LDO) linear voltage regulator that is designed for use in a variety of applications. It is ideal for portable applications, where its low quiescent current and small package size make it a perfect fit. Other applications include automotive, industrial, and medical devices. Due to its low-dropout and high output accuracy, the TPS77515DR is also suitable for power management in low-power systems.

The device is suitable for a variety of battery powered devices, including wireless sensors and wearables, IoT and home automation, personal health and fitness products, and mobile devices. Its wide output voltage range, high output accuracy and fast response time make it an ideal solution for many types of battery-powered applications.

Working Principle

The TPS77515DR is a linear voltage regulator, which means that it operates on the principle of linear control. The device is designed to receive an unregulated voltage input and regulate it to the desired level at its output. In order to regulate the output voltage, the device employs a control loop that compares the regulator’s output voltage to a reference voltage. If the output voltage is lower than the reference voltage, then the regulator will increase the output voltage until it reaches the desired level. If the output voltage is higher than the reference voltage, then the regulator will reduce the output voltage.

The device is capable of outputting up to 1.5A of continuous current and features an enable pin, which allows for user-enabled output control. The device also features over-temperature and over-current protection to ensure reliable operation. The TPS77515DR also utilizes a series current limit feature, which increases the current limit as the output voltage increases, allowing the device to provide up to 1.5A of continuous current.

Conclusion

The TPS77515DR is a low quiescent current linear voltage regulator from Texas Instruments. It provides an accurate and fast voltage control for a variety of applications, including mobile, automotive, industrial, and medical devices. The device features a wide output voltage range, high output accuracy and fast response time, and uses a series current limit to protect against sudden surges in current. The TPS77515DR is an ideal solution for battery-powered applications, due to its low-dropout, small package size and low-power operation.

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