TPS54617RUVT Integrated Circuits (ICs)

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PMIC (Power Management Integrated Circuits) is an integrated circuit that is designed to facilitate efficient power management of a system. PMICs are typically used in complex systems as they offer many advantages over discrete designs. One type of PMIC is a voltage regulator, which is designed to provide constant voltage to a system. DC DC switching regulators are one type of voltage regulator that can be used to support various power applications. The TPS54617RUVT is a DC DC switching regulator designed to enable current sharing, control breathing, and reduce voltage droops in applications where multiple power rails are needed. In this article, we will discuss its application field and working principle.

TPS54617RUVT Application Field

The TPS54617RUVT is a 3-V to 17-V synchronous step-down DC-DC converter, which can be used to support a range of applications, including automotive, industrial, and consumer. It offers better load transient response compared to similar DC-DC converters, enabling faster system recovery and higher efficiency. The device also includes an input voltage regulation, soft-start, and over temperature protection, which helps keep the system operating in optimal conditions. The device also provides several advanced features, such as current-sharing and droop-control, which can be used to improve system reliability and reduce system power loss.

The TPS54617RUVT is designed to support advanced application scenarios, such as those found in high-end automotive, industrial, and consumer systems. During these scenarios, multiple power rails are needed to support low-voltage devices and components. The current-sharing and droop-control features of the device ensure that the system power is evenly distributed across the power rails, reducing system power loss and improving system reliability. Additionally, the device includes a wide input voltage range of 3-V to 17-V, allowing it to be used in systems with different input voltage ranges.

TPS54617RUVT Working Principle

The TPS54617RUVT operates in a synchronous step-down configuration, which means that it takes input from a higher voltage source and steps it down to the regulated output. The output voltage of the device can be adjusted in order to meet the requirements of the application. The device works by first converting the input voltage to a high-frequency voltage, which is then passed through an inductor and a diode to reduce its voltage. The output voltage is then regulated by the feedback controller, which adjusts the duty cycle in order to maintain the desired output voltage.

The TPS54617RUVT also includes several advanced features, such as current-sharing, which allows the device to divide the load current among multiple power rails. By doing this, the system power is evenly distributed and there is no single rail experiencing over-current conditions. Additionally, the TPS54617RUVT includes a droop-control feature, which allows it to reduce the output voltage when the device is overloaded, thus preventing over-current conditions. This feature is especially useful for applications that involve multiple power rails as it ensures that no single power rail experiences over-current conditions.

The TPS54617RUVT also includes a wide input voltage range of 3-V to 17-V, enabling it to be used in systems with different input voltage requirements. The device also has a low quiescent current of 170 µA and a low shutdown current of 5 µA, allowing it to be used in low-power applications. Additionally, the output voltage of the device can be adjusted from 0.7 V to 4.85 V in 100 mV increments, allowing for precise voltage regulation. Finally, the device includes a soft-start feature, which helps to prevent the output voltage from overshooting during start-up.

Conclusion

The TPS54617RUVT is a DC DC switching regulator designed to enable current sharing, control breathing, and reduce voltage droops in applications that require multiple power rails. The device features a wide input voltage range of 3-V to 17-V and can be adjusted to generate output voltages from 0.7 V to 4.85 V. Additionally, the current-sharing and droop-control features of the device ensure that the system power is evenly distributed and prevents over-current conditions. Finally, the device also includes a soft-start feature which helps to prevent the output voltage from overshooting during start-up.

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