TPS65055RSMR Integrated Circuits (ICs)

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Power management and control are two of the biggest needs in any application where electronic devices are installed. Many applications need to be off-grid energy efficient, while others need to draw energy from multiple sources. The Power Management Integrated Circuit (PMIC) offers a comprehensive solution to this problem through its wide range of products and technologies. The TPS65055RSMR is one such PMIC, specially designed for applications with requirements for high efficiency, low power dissipation and adaptability to diverse power sources. This article seeks to explain the practical application of the TPS65055RSMR and its working principle.

What is the TPS65055RSMR?

The TPS65055RSMR is a power management IC (PMIC) manufactured by Texas Instruments. It is a low-power, high-performance integrated device optimized for use in various power-management applications. It is an ideal device for digital power applications such as powering the core processor, communication systems, and other devices in an electronic system. It is an ideal choice for battery-operated devices with its features like voltage supervisor and early warning control circuitry. It also enables very low-power operation and extreme energy saving.

Features of the TPS65055RSMR

The TPS65055RSMR provides high-efficiency, low-power dissipation in power management applications. It integrates many essential functions for power system applications in a single convenient package. Key features include:

• Flexible input voltage operation from 3 to 27V.
• Constant on-time current-mode control.
• Configurable output up to 6A
• Wide operating temperature range of –40 °C to +125 °C.
• Wide input frequency range of 10MHz to 550kHz.
• Up to 8-step voltage regulation.
• Inrush current control.
• Voltage supervisor for system reset.
• Early warning of low-voltage events.
• High-performance internal compensation.
• I2C serial bus for monitoring and control.

Applications of the TPS65055RSMR

The TPS65055RSMR is a highly configurable and flexible power management integrated circuit that is used in a wide range of applications. These include but not limited to load switch applications, single-cell Li-Ion battery-powered designs, inrush current control, ultra low-power operation, extreme energy saving, battery-operated consumer electronics, IoT/wearable applications, as well as data center and industrial applications.

In addition, the TPS65055RSMR is also used to power communication systems and other core processors in electronic systems, such as routers, gateways and access points, which need flexibility and efficient power management. With its high efficiency, low power dissipation, ability to detect a low-voltage event, and wide operating temperature range, the TPS65055RSMR is an ideal choice for these systems.

The Working Principle of the TPS65055RSMR

The TPS65055RSMR is a current mode boost converter that is designed to work with an input voltage range of 3V to 27V and output voltage range of 1.2V to 24V. It offers a constant on-time current-mode control with a wide input frequency range from 10MHz to 550kHz. The device comes equipped with a voltage supervisor, which is used to monitor the state of the battery and other supplies and alert when a low-voltage event occurs. It also features integrated compensation, inrush current control and configurable output current.

The device is typically used in battery-powered applications, and its operation is based on the principle of using a voltage step-up on the input side and a series of linear regulators on the output side. During operation, the input voltage is stepped up by switching on the MOSFET switches which are connected to a series of inductors. The energy stored in these inductors is then transferred to the output side, where it is rectified, regulated and filtered. The output voltage is then regulated by the linear regulators, which are configured to produce the desired output voltage.

In addition, for low-power applications and when the input supply is below 3V, the TPS65055RSMR can be used in parallel with other boost converters for better efficiency. This allows the device to operate at very low power levels, with just a few milliamps drawn from the input supply.

Conclusion

The TPS65055RSMR is an extremely versatile power management IC, which is suitable for a wide range of applications that require power savings, low power dissipation, and adaptability to varied power sources. With its wide input voltage range and light load behavior, the TPS65055RSMR is capable of providing high efficiency and very low-power operation. Its integration of a voltage supervisor and early warning control circuitry makes it an ideal choice for battery-operated devices. Its working principle is based on a voltage step-up on the input side and a series of linear regulators on the output side, thereby allowing it to regulate the output voltage effectively.

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