TPS78925DBVTG4

The TPS78925DBVTG4 is a linear voltage regulator integrated circuit that provides an adjustable output regulating feature as well as low output ripple and EMI noise performance. It is designed to supply up to 1.5A of output current from a single-ended input voltage source. It is widely used in applications of power management and DC power supply, such as computers, peripherals, wireless communication devices, networking equipment, automotive systems and industrial systems circuit.

Features

• Adjustable output voltage range: 0.8~5.0V
• Input voltage range: 3.3V to 30V
• Output current: 1.5A
• Low quiescent current: 30μA
• High EMI & low output ripple performance
• Operates over full -40 ~ 125°C temperature range
• Undervoltage lock-out (UVLO) protection
• Short-circuit protection

Application Fields

The TSP78925DBVTG4 is widely applied in the fields of power management and DC power supply. It is used to provide adjustable voltage for microprocessors, FPGAs and DSPs in laptop and desktop computers. It is also employed in any system that requires adjustable voltage regulation, such as peripherals, wireless communication devices, networking equipment, automotive systems, and industrial systems circuits.

Working Principle

The TSP78925DBVTG4 is a voltage regulator integrated circuit, which primarily use operational amplifiers (OPAMP) and transistors to adjust the output voltage of the device. It uses the OPAMP to control the feedback voltage, which is compared with a reference voltage. When the voltage difference between the feedback voltage and reference voltage is above a certain value, a certain current is passed through the output transistor to adjust the output voltage. The output transistor also provides short-circuit protection. And the minimum allowed turn-on voltage is regulated by the under-voltage-lockout (UVLO) circuit.

Conclusion

In conclusion, the TSP78925DBVTG4 is a linear voltage regulator integrated circuit which is widely used in power management and DC power supply applications, such as computers, peripherals, wireless communication devices, networking equipment, automotive systems and industrial systems circuit. It features include adjustable output voltage range, input voltage range, output current, low quiescent current and high EMI & low output ripple performance. Its working principle is to use operational amplifiers and transistors to adjust the output voltage of the device.