TPS7150QP

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PMIC - Voltage Regulators - Linear

The TPS7150QP voltage regulator is a low-dropout (LDO), linear voltage regulator (VR) from Texas Instruments. It is a fixed output, low input, low-power and low-dropout regulator. The TPS7150QP is designed to reduce the power consumption and cost of audio amplifiers and power supplies. Its wide range of input and output voltages provides flexibility in power-management applications such as personal computers, gaming consoles, multimedia products and industrial controls.

Features of the TPS7150QP

The TPS7150QP provides excellent load and line regulation as well as low dropout voltage. It can provide up to 8A of output current and has a low power shutdown current of 10μA. It has output voltage range of 1.8V to 20V, input voltage range from 4V to 20V and it can operate at temperature ranges from -25°C to +125°C. Some of its other features include: On/Off Control, Thermal Shutdown, Over-Voltage Protection, Under-Voltage Protection, Over-Current Protection, Power Good Output, and Enable Control.

Electrical Characteristics and Applications

The TPS7150QP has excellent electrical characteristics and offers very low output voltage deviation over input voltage, load and temperature changes. In addition, it provides superior transient response time of 1ms to maintain tight load and line regulation.

The TPS7150QP is an ideal voltage regulator for applications such as audio amplifiers, audio/video receivers, portable electronic devices like laptops and tablets, automotive, server and network components. The combination of its low power operation, small size and high reliability makes it an ideal power management solution.

Working Principle

The TPS7150QP is a low dropout, linear voltage regulator that provides a regulated output voltage using an internal voltage reference. A voltage reference provides a stable reference voltage for the circuit regardless of any changes in the input or output voltage. It also prevents any sudden changes in the output voltage due to variations in the input voltage.

The TPS7150QP has a feedback control loop which automatically adjusts the voltage on the output lead to maintain the output voltage at a preset value. When the input voltage increases, the output voltage increases and similarly, when the input voltage decreases, the output voltage decreases. Hence, the output voltage is maintained at a preset value by adjusting the output voltage and regulating the input voltage through a feedback loop.

The internal protection features of the TPS7150QP also prevent the device from entering any destructive mode. The protection features include over-voltage shutdown, under-voltage shutdown, over-temperature shutdown, and short-circuit protection.

Conclusion

The TPS7150QP is a low-dropout, linear voltage regulator with high efficiency and low output voltage deviation over input voltage, load and temperature changes. It is a feature rich device with a wide range of input and output voltages. It has 8A output current and is widely used in automotive, industrial and audio applications. The protection features protect the device from entering any destructive mode thus making it one of the safest power supply solution.

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