TPS54615PWPG4

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TPS54615PWPG4 Application Field and Working Principle

The TPS54615PWPG4 is a synchronous step-down DC-DC converter released by the Texas Instruments in 2015. It belongs to the family of voltage regulators referred to as DC DC switching regulators. This device offers the advantages of wide input voltage range and adjustable output voltage range, making it ideal for many different applications in communications, industrial, automotive and more.

Features

• Wide input voltage range from 4.5V to 19.5V.
• Adjustable output voltage range from 0.6V to 4V.
• Up to 5.2A of output current.
• Up to 92% of the conversion efficiency.
• Integrated bootstrap diode.
• An integrated pass Transistor.
• Average current mode control of the all channels.
• Internal Soft-Start.
• Over Temperature, Over Voltage, Under Voltage and Over Load protection.

Applications

The wide range of features and specifications of the TPS54615PWPG4 allows usage in many different applications. Some of the most important ones include:

• Power supply for networking equipment and servers.
• Telecommunication and telecom base stations.
• Point of load (POL) regulators for FPGAs.
• LED luminaries.
• Industrial equipment.

Working Principle

The TPS54615PWPG4 is a synchronous step-down DC-DC converter that works according to the average current mode control architecture. It consists of an input voltage pin, an output voltage pin, four control pins, a voltage reference pin and two power transistors. The input voltage is applied to the input pin and is regulated by a set of control pins. The output voltage is set by the voltage reference and the duty cycle of the control signals. The output voltage is then fed to the gate of the power transistors. The switch-on and switch-off of these power transistors is controlled by the duty cycle of the control signals.

The TPS54615PWPG4 also features an integrated Soft-Start feature that reduces from 0V to the target output voltage in a time-controlled manner. Additionally, the device also has integrated protections against over voltage, under voltage, over temperature and over loading.

Conclusion

The TPS54615PWPG4 is a synchronous step-down DC-DC converter released by the Texas Instruments in 2015. It is part of the family of voltage regulators referred to as DC DC switching regulators. It features a wide input voltage range and adjustable output voltage range, making it ideal for many applications. It works according to the average current mode control architecture and features an integrated Soft-Start and various protection features.

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